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What is meant by the rate of occurrence of crossing over ? 
What is meant by the rate of occurrence of crossing over?

What are differences between sweat and respiration? 
Sweat is a liquid substance from the sweat pore of mammals.

When an n-1 gamete fuses with n+1 gamete what happens? 
I think it should result in normal zygote.

What is biomass? 
The total mass of organisms in a given area.

Does tapeworm have miracidium larva? 
Does tapeworm have miracidium larva?

Please answer my question 
Sometimes a cell inaccurately duplicates its DNA, and the resulting cells are not identical. What effects might some results have?

Outline the formation of recombinant DNA? 
Using keywords and phrases: 1. 2 sources of DNA 2. Sticky ends 3. complimentary binding 4. hydrogen bonds 5. DNA ligase

While doing frog disection why it limbs do not bleed when nailed?  
As compared to human when our hands are nailed they bleed but why a frog limb never bleeds?

If the sky were green would plants have evolved with blue leaves? 
I wonder how a different color sky would affect leaf color.

What are the factors, which affect community stability of ecosystem? 
What are the factors, which affect community stability of ecosystem?

What maintain homeostasis? 
IDENTIFY AND DESCRIBE THE PROCESS BEING USED TO MAINTAIN HOMEOSTASIS?

Leaves on my plants are turning brown at the tips. Why? 
Leaves on my plants are turning brown at the tips. Why?

2 features that adapted a phylum to aquatic life. 
i dont know so ineed the answer pls

Three features of fossil which help in study of evolution. 
Ans: 1.it can predict the age of a species...

Why is bacteria reproduction considered asexual? 
Because they do not have a nucleus that needs to split.

Why are men capable of continuously producing sperm cells while women cannot? 
Why are men capable of continuously producing sperm and women cant continuously produce egg cells?

What is circulation? 
circulation

What are the stop and start codons for protein synthesis? How does each accomplish its function?  
Please help I don't know the answer and its on my science test tomorrow :)

Describe how Darwin's theory was supported and Lamark's theory was disproved. 
Describe how Darwin's theory was supported and Lamark's theory was disproved.

What is the chemical formula of lipids? 
Review your answer from the pages of lipids.

Is it possible for a person to have antigen A,antibody anti-A? 
Is it possible that the antigen that enters your body is similar to those on the surface of your red blood cells? And when your body produces the antibodies …

How many different types of active sites are there? 
Active sites have different types of shapes depending on specific types of substrates they bind to.

Name three mineral elements that are required for the formation of cell membranes. 
Mineral elements that are required for the formation of cell membranes.

Why Mendel used pea plants? 
Is there any speacial thing in pea plant?

Are viruses used in any way during the formation of insulin in bacteria? 
Are viruses used - as vectors or in any way during the formation of insulin in bacteria?

What is the result of homeostasis at the cellular level? 
a-the cell dies. b-the cell divides. c-the cell no longer obtains energy. d-the environment within the cell is stable.

Is there any epithelial cell which doesn't get nutrients from the connective tissue? 
Any epithelial cells which get food from the free side?

How does cellular respiration affect transportation? 
This is an 8th grade science question please answer it. I can't find the answer anywhere

What reaction produces disaccharides? 
What reaction produces disaccharides?

Where does a baby get it's blood during pregnancy? From it's father or mother? 
A baby cannot receive any blood from it's father only from it's mother.

What is homeostasis? Explain. 
I want to know the answer to this question.

Why do some individuals acquire the same disease twice, even though it is supposed to appear only once in a lifetime? 
I ask this because some people can experience chicken pox more than once in a lifetime.

Why bryophytes don't have fruit? 
Because they are not vascular tissue?

A mutation is created that lacks the coat proteins involved in pinocytosis, in these cells, what might you expect to see? 
Is it asking what other type of endocytosis is going to happen if pinocytosis can't function or what happens to the cell itself?

What kind of abiotic conditions in mangrove systems will find? 
Abiotic conditions in mangrove systems.

The respiratory surface of amoeba is? 
a.cytoplasm b.pseudopodia c.cell membrane d.trachioles

Compare and contrast the functions of the types of neurons found in the peripheral nervous system and the central nervous system. 
Ar they referring to where the neurons go like if CNS the neurons are from the PNS leading to the spinal cord and then to the brain whereas the PNS has …

Why meiosis occured in two cells instead of four cells during spermatogenesis? 
During spermatogenesis after primary oocyte meoisis occured it divide into two cells instead of four cells because in meoisis parent cell divide into four …

What is an enzyme? 
It is a biological catalyst that speeds up a chemical reaction but it is not used up in the process.

Give some examples of bacteria? 
Give more than five examples.

What happens if not enough ATP is created in the ETC? 
How many ATP need to be created in order for the ETC to function right?

How to calculate linkage percentage ? 
Linkage = sum of all parental of springs / total sum of all offspring × 100?

Relate gene linkage to chromosome assortment and crossing over during meiosis. 
During meiosis, genes that are close together on the same chromosome are less likely to be separated than genes that are far apart.

What happens during glysolysis? 
Describe in your own words.

Why do people produce antibodies to antigens they do not have? 
To do with immunological reactions that may take place in the body. This mechanism protects us from agglutination?

Why are ulcers easily infected? 
Why is an ulcer painful?

How is biodiversity linked to our survival? 
Biodiversity is linked with our survival.

What are the protists that move by means of flagella? 
Study Protists - Definition, Types, Structure .

What is the importance and species of halophiles? 
What is the importance and species of halophiles?

What groups do human beings belong to? 
The species name, genus name, family name, and order name.

How are sex chromosomes and sex linked traits alike? 
How are sex chromosomes and sex linked traits alike?

Why meiosis does not occur in lower grade animals? 
May be because of absence of centriole?

If DNA is composed of only three chemicals,why are living things so different from each other? 
How do you code for so many different organisms with only three chemicals?

How are stages of natural succession identified? 
How are stages of natural succession identified?

Difference betwwen leaf cells and xylem vessels 
Function of root hair cells it to absorbs water and minerals from the soil.

How are the effects of global warming and acid rain related to cellular phenomena?  
Although we often think of global warming and acid rain as phenomena that broadly affect ecosystems, how and in what ways are their cumulative effects …

Explain how the streaming of a Amoeba illustrates phase reversal in a colloid. 
This is a question from my Protozoans lab that I am completing. I mainly don't understand what phase reversal is. Thank you.

Why does yeast use more glucose under anaerobic condition compared to aerobic conditions? 
Yeast use more glucose under anaerobic condition compared to aerobic conditions?

How do depressants affect the working of the nervous system? 
Depressants stop/slow down neurone impulses. This is because they reduce the amount of acetylcholine (neurotransmitter) and/or blocks receptors, so they …

What are the function of the sori found on a fern plant? 
What type of spores are produce in the fern plant?

Mendel crossed a pure white pea plant with pure red flowered plant. In F1 generation all flowers were red. (i) which is the recessive trait. (ii) express the gene type of parents F1 & F2 progeny? 
Mendel crossed a pure white pea plant with pure red flowered plant. In F1 generation all flowers were red. (i) which is the recessive trait. (ii) express …

What would happen if the membrane is too efficient of a barrier and blocks things from entering the cell? 
I'm not sure what would happen if the cell membrane was too efficient of a barrier.

In what types of plant cell does not occur cell division? 
In what type of plant cell does not occur cell division.

What are the differences between the two new cells formed after mitosis and cell division? 
I have to compare and contrast the two new cells but I'm confused by what they mean by "two new cells". I thought there was only one new cell, the daughter …

What's the difference between the 4 levels of a protein structure?  
Basically how would you compare between those four levels briefly.

What is the advantage of molluscs? 
Molluscs have smooth body.

Are there diseases caused by dirt? 
Diseases caused by dirt?

Is southern blotting a step in PCR technique used in DNA fingerprinting? 
DNA fingerprinting , a process of individual identification.

Explain the age pyramid. 
Age pyramids are graphical representations in form of superposed rectangles each representing the number of individuals included in age ranges into which …

What are the differences of butterflies, spiders and lobsters? 
Like in the Arthropoda class? What do they have different.

What is the reason why human beings must undergo excretion? 
Excretion is the removal of metabolic waste product from the body of an organism.

If S is a dominant allele and s is a recessive allele, what is the interpretation of the second generation offspring when Ss is crossed with Ss? 
What i mean with the word 'interpretation' here is something like, SS 50%, ss 25% and Ss 25%. Normally, I find this question if the parent's genotypes …

What is the difference between exosmosis and endosmosis? 
Why wet clothes never dry on a rainy day?

What are the characteristics of enzyme? 
Characteristics of enzyme in enzyme catalysed reaction.

What do you understand by ecdysis? 
What do youn understand by ecdysis?

Which cranial nerve controls respiration? 
Part of brain which control respiration.

How do sponges move? 
I don't know somwone help me.

What on your body grows quicker when your immune system is active? 
What on your body grows quicker when your immune system is active?

Why birds are warm blooded animals and why birds have four chambered heart? 
These are warm blooded animals and have four chambered hearts they lay eggs they are known as aves.

Explain the process of protein synthesis from processed m-RNA. 
Answer from molecular bases of inheritance.

Does interphase occurs after meiosis 2? 
Interphase after meiosis 2???

What is the other word for DNA? 
It is dioxy ribose nucleic acid right?

How many rounds of Calvin Cycle will it take for 6 glucose? 
It would take 12 rounds of the Calvin Cycle to create 6 glucose, because each round makes a 3-carbon sugar that is known as GP3. The stroma holds the GP3 …

Describe the calculation of the total number of ATP that are produced from one molecule of glucose during aerobic respiration. 
Describe the calculation of the total number of ATP that are produced from one molecule of glucose during aerobic respiration.

From where are nutrients made? 
Nutrients are organic molecules made from plants that give energy thanks!!!!!!!!!!!

why do decomposers do not appear in a foodchain? 
Decomposers are not used because they speed up the decaying process that releases mineral salt back into the food chain for absorption by plants as nutrients? …

What kinds of animals are in the grassland biome? 
Please answer this questions and write any useful websites that could be used to answer this question!!!!

Why is blood typing represented with the letter i? 
For a class, Im working with blood typing and wondered why blood is represented with i.

Explain the process of photosynthesis. 
Photosynthesis is a process in which plants manufacture their own food in d presence of sunlight, co2 n water.

Why some porifera possess bright color? 
To protect themselves maybe.

Explain the theory of enzyme action that is proposed for interpreting the action of enzymes of meats. 
Im looking for this for my nutrition food science class. I don't quite understand the Enzyme action.

What are examples of heteroxenous parasites? 
EXAMPLES OF OBLIGATORY PARASITES ARE TAENIA,TRICHINELLA.

Why would cells go through alcoholic fermentation or lactic acid fermentation instead of cellular respiration? 
I think it's because fermentation helps the cell grow rather respiration just converts molecules.

Is the parasympathetic ganglion close to spinal cord or in target tissue? 
The autonomic nervous system is split into sympathetic and parasympathetic nervous systems. Ganglions are present in both systems, where is the ganglion …

CO2 is incorporated into the original organic molecules when? 
a. In the reduction phase of the Calvin Cycle b. In the carbon fixation phase of the Calvin Cycle c. In the regeneration phase of the Calvin Cycle d. …

What is a bulk transport? 
Bulk transport.

Can the cell cycle described for mitosis be applied to meiosis? 
No, they are completely different one is for body cells and one is for sex cells, meiosis makes 4 new cells with 23 chromosomes and mitosis makes two identical …

Why amnion is not present in amphibians? 
Amnion is not required as there fertilization is external in water so moist environment is there.

How are mutations of the respiratory phase diagnosed? 
Symptoms of exhaustion, frequent sighing, muscle pain, fructose and alcohol intolerance, lactic acid results...

What are the stages of animal development? 
What are the stages of animal development?

Name the largest and smallest organelle of cell. 
Largest: Endoplasmic reticulum Smallest: Ribosomes

How a recently born infant get the O antibody? 
This O antibody does not have a any antigen. So the antibody production is so difficulty. I think the infant get antibody from his mother's milk.

Does number of population of a species increase when the ecosystem diversity increase? 
The relationship between ecosystem diversity and number of population.

How is the amount of ammonia affected by the amount of urine? 
Is the amount higher or lower depending on the amount of urine?

What is meant by gout? 
Metabolic disorder.

What will happen if pollination does not take place in angiosperms? 
I have no idea about this question please help.

What is the difference between prokaryotic and eukaryotic beings? 
Main difference between prokaryotic and eukaryotic.

What is the difference between aerobic respiration and lactic acid fermentation? 
I need to distinguish between aerobic and lactic acid fermentation to produce a summary.

What is quantitative phenotypes? 
Quantitative phenotypes are those characteristics that can be measured such as length, viability, weight, dressing percentage, eggs/kg, female etc.

What are the four criteria for classifying an organism into a kingdom? 
Is it Number of cells, how it obtains energy, and type of cell. Still one missing. Help.

What are plant remains used for? 
Macroscopic and microscopic plant remains.

Which animal shows complete linkage? 
a)Male Drosophila b)Male Honey Bee c)Female Drosophila d)Female Honey Bee

What are similarities between bacteria and mitochondria? 
Similarity between bacteria and mitochondria.

What will be the result by crossing ab with b blood group? 
When mother blood group is ab and father group is b what will be the result?

How is ecological density important? 
Ecology is the study of the plants and animal species and how they interact with their environment.

What mechanism delivers the appropriate nucleotides to their proper location on its unloaded trna molecule? 
A lock and key chemical fit. The chemical molecules in each of the three slots can only electrostatically bind with one of the 4 nucleotides available. …

What is endocrine reflex? Compare endocrine reflexes and neural reflexes. 
In what ways can hormone modify the activities of its target cells?

One hypothesis about the origin of mitochondria is that they were once bacteria that invaded a large cell. What are some predictions of this hypothesis that you could test? 
One hypothesis about the origin of mitochondria is that they were once bacteria that invaded a large cell. What are some predictions about this hypothesis …

Why are most bryophytes found in terrestrial areas? 
Because they live on moist ground and rocks.

Wht is biodiversity? Give an account of biodiversity. 
Biodiversity refers to the variety of life.

Explains the differents types of leafs according to their margin. 
Explains the differents types of leafs according to their margin.

Describe the structure of starch and explain why this structure makes it a suitable molecule for storing energy. 
Starch is a polysaccaride made up a mixture of 2 glucose compounds ; amylose and amylopectin. The amylose is a long unbranched glucose chain which makes …

What do we mean when we say a bacteria is encapsulated? 
Bacteria are encapsulated when they are enclosed in a capsule which protect them from being killed by phagocytes and other intracellular killing mechanism. …

What is the energy molecule produced during cellular respiration 
What waste produce made by plants is useful for animals?

What is the relationship between the gonads and the pituitary gland? 
How does the gonads participate with the pituitary gland?

What is the role of lichens in ecosystem establishment? 
What is the role of lichens in ecosystem establishment?

Do the scientific laws in Biology were made forever? Or is change accepted? 
MOONLIGHT PROTEINS- which clearly make wrong, The Central Dogma of Life DNA -RNA - PROTEIN - ONE FUNCTION OR ONE GENE : ONE PROTEIN : ONE FUNCTION …

Why do eyes turn red? 
Anything that makes the blood vessels in the eyes to swell will cause redness, including allergy, drinking, smoking, infection etc.

What is a producer? 
I am student i want to review my test tomorrow so if you can help me please i need help thanks.

Compare and rationalize the speeds of each process in transferring ions and molecules from one side of the cell to the other? 
I'm just looking forward to know the comparison between the speed in the transfer of ions and molecules from one side to other side good to another in …

Steps in production and release of conidia? 
conidiogenisis....maturation..delimination...secession..proliferation

What is polymorphism? 
What is polymorphism in Zoology?

What are the potency requirements in an antiserum? 
Potency requirements in an antiserum

Nucleus was first observed in the leaves of? 
Nucleus was first observed in the leaves of... (Hint:orchid leave,oak,wheat,rice)

What is cell division? 
Explain cell division.

How the movement of solutes into the cell influence water movement? 
When solute is moved into the cell, water tends to leave the cell or enter the cell. The movement of water is based on the solute present.

What are the chemical substances that compose the plasma membrane? 
What is the difference between plasma membrane and cell wall?

Explain the importance of angiosperms. 
They are used as food for example maize and beans.

Photosynthesis question. Read below. 
Photosynthetic organism is illuminated in a closed, sealed environment; a few hours later it is observed that the CO2 and O2 levels in the surrounding …

Photosynthesis question. Read below. 
Photosynthetic organism is illuminated in a closed, sealed environment; a few hours later it is observed that the CO2 and O2 levels in the surrounding …

What is the formula for photosynthesis? 
It is for my science i have a exam on January 8.

The activity of enzymes is decreased by some chemicals, called _________. 
a)Activators, b) inhibitors, c) coenzymes, d) cofactors, e) apoenzymes

What is binomial nomenclature? 
What is binomial nomenclature?

Are strawberries angiosperms or gymnosperms? 
I think that they are angiosperms because a flower grows, however, there are seeds on the outside of the fruit. Answer on Angiosperms .

Write a short note on cell wall. 
Study Cell Membrane .

What is true about plasma membranes in all cells? 
1 They occur in an uninterrupted bilayer with membrane proteins only in the internal surface. 2. They are two-sided; i.e., the cytoplasmic side is different …

Which is better for an ecosystem, biodiversity or monoculture? 
Which is better for an ecosystem, biodiversity or monoculture?

Which of the following types of cells can this organelle/structure be found in for ribosome? 
Why is this organelle/structure wanted? In other words What does it do for the cell? Where is the organelle/structure located in the cell?

State various structure modifications in a cell involved in secretions? 
Structure modifications in a cell involved in secretion.

Demonstrate what happens during the respiration briefly oxidation of glucose to generate energy 
Demonstrate what happens during the respiration briefly oxidation of glucose to generate energy.

What needs to be present in the cell for cellular respiration to take place? 
I know that oxygen is needed for some parts, but not for all. Maybe sunlight? Like energy? Sorry, I really don't know.

What is mean by myofibril? 
It is the contractile element which is thread like structure present inside the sarcolemma. Study Musculoskeletal .

Why are arthropods the most successful animal group on the planet? 
Give at least 4 reasons why arthropods are so successful. Read Phylum Arthropoda .

What are the causes of overcrowding? 
Study Population Ecology .

What is glucose? 
Study Carbohydrate Properties Review from Biology Questions and Answers .

Which step of scientific inquiry involves organizing and interpreting the data? a. Experimentation b. Analysis c. Conclusion d. Hypothesis  
Which step of scientific inquiry involves organizing and interpreting the data? a. Experimentation b. Analysis c. Conclusion d. Hypothesis …

A pathogen has entered your body. Which of the following is likely to happen next to defend against this organism? 
Complement proteins initiate a chain reaction to burst harmful microbes. White blood cells react to harmful microbes by creating antibodies to combat …

What is the classification of mustard? 
Kingdom= division= class= order= family= genus= species=

Sponge bodies do not have organs instead they have masses of cells supported by? 
A ostia or oscula B spicules or spongin C ocula or spicules D spongin or ostia Study Porifera - Complete Zoology Review .

How are fructose and glucose different? 
1)One is a monosaccharide and the other is a disaccharide. 2)They each have a unique molecular formula. 3)They have a double-bonded oxygen in different …

Where the enzymes involved in viral replication are synthesized? 
Study Viruses - Definition, Structure, Genetics and Replication .

Which fact is most important in explaining how enzymes speed reactions? 
Very low potential energy tends to make molecules unstable. High-energy collisions are less common than low-energy collisions. It takes less energy …

Justify blood is a tissue. 
Study Blood Questions .

Where are the amino acids located? 
Study Protein Synthesis Made Easy .

Were you able to observe the nucleolus in any of the cells? If so, which ones?  
Study Cell Structure and Cell Nucleus - Definition, Structure and Function .

What are secondary metabolites? 
Read The Excretory System .

Who was the supreme ruler of all dinosaurs? 
Was there something greater than Tyrannosaurus Rex, Gigantosaurus, Spinosaurus, Mega Raptor...?

What is a heterotroph? 
A heterotroph is an organism that hunts for food to gain energy.

What Is complex chemistry? 
What is complex chemistry most compared to?

Who discovered ecological pyramids? 
Study Population Ecology .

What are disadvantages of variation? 
Study Evolution Theory .

Describe canal system in Porifera?  
Study Porifera - Complete Zoology Review .

A detoxicated antigenic toxin on injection into an animal produces active immune response with induction of antigenic tolerance what would be happened if same toxin is injected in the same animal? 
Respected sir, in my opinion that animal would be resistant to that toxin, without development of adequate antibodies, means that animal become non immunological …

Why are the groups of small cells better than one large cell at moving material in and out? 
Study Intracellular Digestion - Lysosomes and Apoptosis .

What is spirogyra? 
A multicellular filamentous green algae.

What is a secreting cell? 
Read Secretion - Biology Questions and Answers Review .

How does ascaris respire? 
Study Annelids - Easy Review .

How does studying a gene related to a single gene disorder benefit us? 
I just need a basic answer to this (a few paragraphs) and the main keywords.

What are the special features about ferns? 
Read Ferns - A Biology Review .

Why do we have blood groups? 
Study Blood Types Review .

Describe the impact cellular respiration has on other organisms and the environment. 
Describe the impact cellular respiration has on other organisms and the environment.

What are aspects of water that make it more suitable for life than liquid methane? 
Earth life revolves fundamentally around the presence of carbon to construct complex biological molecules and the presence of water as a solvent. Thus, …

The ability to grow in size is a characteristic of living organisms. Although an icicle may grow in size overtime, it is considered nonliving because there is... 
1. an increase in matter, but no increase in icicles 2. an interaction between the icicle and the environment 3. no way for the icicle to move away from …

Put the process of protein synthesis in order:  
mRNA leaves the nucleus DNA strand unwind and separate tRNA binds to the corresponding of mRNA amino acids bind to esch other , the chain lengthens …

What is the relationship between concentration gradient and size of an invertebrate? 
Study Zoology Review - Questions and Answers for Biology Exams .

How to do ordination in plant community? 
How do we can determine the relationship between species composition, density, biomass, height in different sites of the forest?

Describe experiments to investigate the evolution of carbon dioxide and heat from respiring seeds or other suitable living organisms. 
I have a test coming up in a few days and I can't seem to find an answer to this. I have seen a lot people say that it is the peas experiment, where you …

Why is the vaccine of measles not given too early to babies? 
Because they have passive immunity coming from mother when fetus or through mother milk?

Can a 3'dntp also be built into DNA? Because a normal dNTP is missing a 2'OH, while this one is missing a 3'OH but still had its 2'OH. 
I can't figure out if it's possible to build a 3' OH into a DNA sequence. It might be a mutation then but I'm not sure if DNA polymerase will pick it up …

Explain how oxygen becomes available to a muscle tissue for respiration. 
Study Breathing Process and Musculoskeletal System .

What role do liches play in primary succession? 
Study Ecological Succession .

What is the powerhouse of cell and why is it called so? 
Mitochondria is the powerhouse of cell because it produce energy by respiration.

Make reference to the processess of GEG technology. 
Enzymes, roles and advantages.

What is the purpose of lactic acid fermentation? 
Find the answer on Cell Respiration .

What is base plate protein? 
Base plate is part of structure of virus...

Using labelled diagrams where possible, briefly describe the following in complement activation: 
Using labelled diagrams where possible, briefly describe the following in complement activation: (i) the functions of C3 and (ii) the structure of …

What is the name of the plant that looks like a hairy honeydew melon but when sawn in half grows and expands? 
I've seen it on youtube and want to know what kind of plant this is and where it lives. Where does this plant live and why does it replicate in this …

How a gamete becomes haploid? 
Study Gametogenesis .

Are soil nematodes observed by our naked eye? 
Study Nematoda - from Zoology Review .

What are the different modes of unisexual reproduction? 
hint : fission, fragmentation, budding, spore formation

What are restriction endonucleases? 
Study Genetic Engineering .

How feeling shape our thoughts. 
Study Nervous System .

Which form is correct NADH2 or NADH + H+? And why? 
We can write FADH2 but not NADH2, mostly NADH+ + H+.

What are the main differences between Egestion and excretion? 
Egested materials come from the bowel while excreted materials come from other parts of the body.

What is polyploidy? 
What is polyploidy?

Name one tissue in the thyroid gland. 
It can either be thyroid gland or the pituitary gland. Answer on The Endocrine System .

Can one locus have three different alleles with one dominant and two recessive? Can there be more than three forms of one allele at a particular locus? 
I know that the ABO blood system has three different alleles at the locus for ABO blood type, and that IA & IB are co-dominant to i, but if a particular …

Does sex determintion include gametogenesis? 
What is the relationship between sex determination and gametogenesis? Answer on Gametogenesis .

Identify the major parts of the brain. 
Answer on Nervous System .

How does photosynthesis affect upper level consumers that are carnivores? 
Study Photosynthesis Process - The Easiest Online Review .

What structure in protists determines what type protist it is? 
Study Protists - Definition, Types, Structure .

How does the prefix in tells which reactions in photosynthesis require light? 
Study Photosynthesis Process - The Easiest Online Review .

How does photosynthesis help cellular respiration happen in a plant? 
I know what photosynthesis is and I know what cellular respiration is to but I don't know is how photosynthesis helps cellular respiration. Study Plant …

What process allows for the binding of two amino acids is called a peptide bond? 
What process allows for the binding of two amino acids is called a peptide bond? Read Protein Synthesis Made Easy .

What are the benefits of flowers? 
Study Angiosperms .

Why is population doubling time a significant population statistics? 
I think it will help to increase the population. Study Population Ecology .

What do you mean by dead cell of plant? If they are dead then how they perform there function? 
What cell organels are present on them? Study Plant Tissues .

How do animals with no blood, transport their food ? 
What are the types of animals with no blood? Read The Circulatory System - Complete Review .

When a supplement is described as "membrane active", what does that mean? 
What does a "membrane-active" substance do in the human gut?

What must happen before cell division can occur? 
Read the answer on Cell Division .

In what way is wasted heat energy formed in muscle contraction useful? 
As ATP is spent causing myofilaments to slide, some of the energy is released as "wasted" heat. Read Musculoskeletal .

What is the symmetry of an annelid? 
Read Annelids - Easy Review .

When do the extraembryonic membranes form? 
Study Extraembryonic Membranes .

Does a crab have radial symmetry? 
Study Phylum Arthropoda .

What is trophic level? 
Read Food Chain .

What is the type of process of photosynthesis and cellular and respiration? 
Also what occurs in those processes? Study Photosynthesis Process - The Easiest Online Review .

Describe how the production of eggs and sperm differ. 
I know that the eggs are produced from girls and sperm is from guys, but I'm not exactly sure how to describe the difference. Read Gametogenesis .

How does tRNA know where to drop each amino acid? 
Study Protein Synthesis Made Easy .

What are the excretory products in humans? 
Study The Excretory System .

How do polar molecules help humans? 
Read Water Properties .

Why is protozoa kept in protista? 
Read Protists - Definition, Types, Structure .

What is the process of passing water throughout a plant? 
Study Plant Physiology and Plant Tissues .

How is food digested to the cels? 
Read Digestive System .

Plants growing very hot and arid climates have greatly reduces photosynthesis actively during the middle hours of the day. 
What is the best explanation for this observation above? Study Plant Physiology .

What is chromatid? 
Study Cell Nucleus - Definition, Structure and Function .

What is air pollution? 
Read Environmental Issues .

What makes the stomach different from other digestive organs in terms of structure and function? 
The stomach, a temporary storage tank, where the chemical breakdown of protein begins and food is converted to a creamy paste called chime. The stomach …

Which organ and tissues are rich by elastin? 
Which organs and tissues are rich by elastin? a. Lung b. uterus c. aorta d. bone Read Cell Tissue .

What stimulates mitosis to occur? 
Answer on Cell Division .

What is the cause of the survival of porifera? 
Answer on Porifera - Complete Zoology Review .

What are four organells involved in cell division? 
Find the answer on Cell Division .

Name one substance the embryo excretes. 
Find answer on Extraembryonic Membranes .

What is the function of flatworm to ecosystem? 
Study Flatworms Review and Ecology .

The heart muscles do not divide, then why the heart of children is small while of adults is large? 
Why the heart of children is small and of adults is large...??? Read The Circulatory System - Complete Review .

What biochemical process is responsible for the plants absorption of O2 and net production of CO2? Does this process occur in the presence of light? 
Why aren’t the net production of CO2 and net absorption of O2 seen in the presence of light? Explain briefly. Read Photosynthesis Process - The Easiest …

What is sarcolemma ? 
Study Musculoskeletal .

Is a group of fish though to be ancestral of amphibians? 
Study Life Kingdoms - Monera, Protista, Fungi, Animalia, Plantae, Virus .

Is there any example of mollusks with economic importance? 
Well, I just need some examples but with the economic importance. Read Mollusca - Study Guide .

Xplain how plants obtain water from the soil. 
Plant take in water from their hair roots in a form of osmosis to the xylem vessel to all parts of the plant. Study Plant Physiology .

What helps maintain the correct temperature in circulation? 
Study Physiology Review - Questions and Answers for Biology Exams .

Should an abstract about the respiration system include sensor, effector and feedback response within the body? 
My hypothesis is "if exercise rates increase, then the heart rate and breathing rate increase also". Study Breathing Process .

What are the commercial use for protists without food? 
Study Protists - Definition, Types, Structure .

What is the useful effects of porifera? 
How can it help to human beings and environment? Read Porifera - Complete Zoology Review .

What determines the linkage rate of a gene? 
Linked genes are two otherwise unrelated genes that lay close to one another on a chromosome, and through meiosis. Therefore if you inherit one of these …

What is the difference between DNA and collagen? 
Read Biochemistry Introduction .

What is an organelle? 
Read Cell Biology Review .

Which are the respiratory organs in protochordates? 
Read Chordates - Easy Zoology Review .

How human eye act as converging lens to produce real image? 
Crystalline lens is part of human eye right? Study Eyes .

Does the effectiveness of pepsin depend on the pH? 
Yes it depends on pH because it is so acidic, it can only work in a very acidic atmosphere. Read Digestive System .

What is the ecological importance of pteridophytes? 
Study Ferns - A Biology Review .

How enzymes are named? 
Study Enzyme Activity .

The net reaction of photosynthesis clearly shows that photosynthesis is... 
The net reaction of photosynthesis clearly shows that photosynthesis is a) An anabolic process b) A catabolic process c) An exergonic process d) …

What is the definition of transaction in biology? 
If it is "translation", see here: Protein Synthesis Made Easy .

What is heartbeat and cardiac cycle? 
Study The Circulatory System - Complete Review .

Describe how a named hormone leaves the organ that produces it and arrives at the cells of its target. 
Refer to all structures involved during its journey. Study The Endocrine System .

How acidic must an enzyme be? 
Read Enzyme Activity .

What are the properties of water? 
Study Water Properties .

How does the productivity of the producers affect the trophic levels above? 
Trophic levels correspond to positions on a food chain. Therefore producers always belong to the first trophic level and decomposers to the last trophic …

What is the basic unit of biological classification? 
Read Life Kingdoms - Monera, Protista, Fungi, Animalia, Plantae, Virus .

What problems can occur during metaphase? 
Well, cells would not duplicate or the daughter cells could be damaged and mutations could occur. Study Cell Division .

List and describe the processes of human cell division forming an embryo. 
1.Fertilization 2. Cell division 3. Cleavarage 4. Implantation 5. Embryo Study Embryonic Development .

How does ecological succession affect an ecosystem? 
I know ecological succession benefits but could i write how it benefits or not? Study Ecological Succession .

What would be the tcbd and tcdr genes in the following sequences tcd b: 5'-ctcgtagaattcctgcgtacc-3' and tcd r: 3'-gathagtggcctgactaaggggccaaaa-5'? 
You have isolated several fragments from toxicity genes of C. difficle that you are interested in studying. you are designing complementary PCR primers …

Is the plasma membrane permeable? 
What is it? How does it work? What does it let through its membrane? Study Cell Membrane .

What is the function of the chromatin? 
Study Cell Nucleus - Definition, Structure and Function .

Explain fermentation in your words. 
Study Cell Respiration .

Haemagglutination occur when? 
Blood group A, B, and AB were mixed together with whole blood from another person X. But haemagglutination did not take place. Give your reasons for the …

What is a buttress? 
A buttress is the button of a tree in the taiga that holds the tree to the bottom.

What is the antagonists of the pectoral muscle? 
I think the answer is latismus dorsi. Read Musculoskeletal .

Differences between gastropods and cephalopods. 
Read Mollusca - Study Guide .

What is botany? 
Study Plants .

What is meant by guild? 
A guild is any set of organisms which occupy any trophic level and share the same resources! Read The Environment .

Aerobic respiration involves which of the following inputs? 
Carbon,dioxide ATP and NADH. Read Cell Respiration .

Name 3 protist that move by using flagella. 
Read Protists - Definition, Types, Structure .

Why neurons are branched? 
Study Nervous System .

Where does the intermediate reaction occur?  
Please be more specific than mitochondria. Within cristae or matrix? Read Cell Respiration .

Do all gymnosperms macrophyle contain several ovules? 
Cycads macrophyl has several ovules. Do Conyfers have several ovules? Read Gymnosperms .

Which came first, cells or virus? 
Read Viruses - Definition, Structure, Genetics and Replication .

Why do protozoans prefer insects for their living? 
Why plasmodium preferred anopheles mosquito rather than other insects? Read Protists - Definition, Types, Structure .

Journey of how amino acids become protein. 
Read Protein Synthesis Made Easy .

What do plants store carbohydrates as? 
Study Carbohydrates Properties Review from Biology Questions and Answers .

Aristotle's lantern is found in? 
Study Zoology Review - Questions and Answers for Biology Exams .

Name four things that make up blood. 
Study Blood Questions .

HBBP1 pseudogene  
Where is the HBBP1 pseudogene located?

What is bile? 
Study Digestive System .

Give three examples of organs in the body. 
Study Physiology Review - Questions and Answers for Biology Exams .

Where are SA node AV node and Purkinje fibre, bundle of His located? 
Study The Circulatory System - Complete Review .

How do plants and animal tissues compare? 
Both plant and animal tissues form the most numerous and largest tissues for their specific organisms. Both are also densely packed together, leaving very …

What is an example of chemical energy? 
Study Enzyme Activity .

For each of the reactants and products of aerobic cellular respiration, please describe where the reagent or product  
For each of the reactants and products of aerobic cellular respiration, please describe where the reagent or product came from. C6H1206 + 602 ---> 6C02 …

What is the main cause of liver cancer? 
Study Degenerative Diseases .

What is the photolysis of water? 
Study Photosynthesis Process - The Easiest Online Review .

Can freezing then thawing food change its biochemical makeup? 
Can freezing then thawing food change its biochemical makeup? If so, could this affect how the body digests and uses the food? Read Biochemistry …

During cellular respiration, glycolysis depend on whether O2 is present or not. Explain. 
Glycolysis occurs if oxygen is present or not for it only splits glucose for other metabolic pathways to happen. Study Cell Respiration .

What are the digestive systems of rabbit and earthworm? 
Read Zoology Review - Questions and Answers for Biology Exams .

What's the mechanism of being invisible? 
Invisibility can be achieved by any number of different mechanisms, including perfect transparency without refraction, mechanisms that reroute light particles …

What is genetic cross? 
Read Genetics .

Since neurons are destined never to divide again, what conclusion can be made?  
A. These cells will go through cell division. B. These cells will be permanently arrested in the G1 phase. C. These cells will be permanently …

What is concentration? 
Study Cell Membrane .

Which are the organelle involved in movement, a different one in protein transport, and a third one in information transfer within a eukaryotic cell. Is the cell wall living? 
Flagella is involve in movement. The endoplasmic reticulum transport the protein. The rough endoplasmic reticulum, which is responsible for protien that …

How does the nervous system work? 
The receptors take stimulation from the environment and send it as a nerve impulse through the sensory nerve. the sensory nerve send this message to the …

Why is there a limit on cell size? 
Read Cell Structure . Good question.

Briefly describe the mammalian placenta. 
Read Extraembryonic Membranes .

How the surrounding temperatures influence constriction and dilation of blood vessel? 
How the daily lifestyles influence the function of circulatory system? Study Breathing Process .

Two organizing theme in biology today? 
For example evolution is core theme of biology. But I am confuse which two are organizing theme in biology. Answer: Molecular Biology, Ecology, Biodiversity, …

Compare vaccine and antibody. 
Study The Immune System .

Describe how mRNA is processed? 
Study Protein Synthesis Made Easy .

Which answer correctly explains how the ATP molecule differs in function from the ADP molecule? 
Here are the multiple choice: ATP stores potential energy, while ADP creates immediate energy. ADP breaks down energy, while ATP builds energy. …

What is translation? 
Study Protein Synthesis Made Easy .

What is meant by cleavage period? 
Read Embryonic Development .

What are the main divisions of plants? 
Study Plant Classification .

Can hemolysis occur in plant cells? 
Plants do not have blood.

Describe the spinal reflex action. 
Study Nervous System .

Glycogen,cellulose and starch are all? 
Study Carbohydrates Properties Review from Biology Questions and Answers .

Bradford and Lowry assays 
If a mixture of different proteins in a sample (not just BSA) was being measured using the Lowry or Bradford assays, would differences in amino acid composition …

Does the secretory vesicle help rebuilding the plasma membrane? 
Study Secretion - Biology Questions and Answers Review .

Are amino acids made up of proteins? 
Consider the opposite. Read Protein Structure .

What components are consumed by the process of photosynthesis? 
Study Photosynthesis Process - The Easiest Online Review .

Enzymes lower the activation energy of a chemical reaction. Does this describe the role of an enzyme in the decomposition of a substrate?  
I really need to know. The actual question is : I.Each enzyme is very specific and can only catalyze a certain reaction by binding to its substrate …

How do transcription and translation occur? 
Study Protein Synthesis Made Easy .

Define and explain functions of cell membrane, also give experiments to explain semipermeability. 
CELL MEMBRANE- A porous membrane that regulates the entry and exit of substances is called cell membrane. FUNCTIONS- Regulate the entry of substance …

How does the R group lead to structural diversity? 
Read Protein Synthesis Made Easy .

Why do facultative anaerobes reduce nitrate? 
Enterobacteriaceae reduce nitrate to nitrite, why?

Why tobacco mosaic virus got his name? 
Study Viruses - Definition, Structure, Genetics and Replication .

Full classification of polyporus sp is ...? 
Study Fungi Kingdom Review .

What are the groups that protists are classified into? 
Study Protists - Definition, Types, Structure .

How is digestion performed in sponges? 
Read Porifera - Complete Zoology Review .

Describe the effects of calcitonin. 
Study The Endocrine System .

Explain why the mechanism of reproduction of the class Mammalia is considered to be more advanced than that of the class Osteichthyes (fishes).  
Chondros” means cartilage, “ictis” means fish (both from the Greek); the name chondrichtians is for fishes with cartilaginous endoskeleton. The name osteichthyes …

What is gram positive bacteria? 
Study Bacterial Cell .

What is the ecological importance of pteridophyta? 
Read Ferns - A Biology Review .

Describe how you will carry out simple test to show the presence of protein reducing sugar and lipids in a given food sample. 
To a small quatity of protein(egg white)substance, put in a test tube. Study Digestive System .

What is thermoregulation? 
Read Homeostasis .

What do you know about peroxisomes? 
Read Cell Structure .

True or false? 
Mrs maguire crosses two pea plants with the alleles Ss. If she gets 12 new seedlings as a result, it is more likely that 3 of the seedlings will produce …

What are the main characteristics of the bryophytes? 
Bryophytes are nonvascular plants, i.e., they do not have conductive tissues and they perform transport of water and nutrients by diffusion; they are cryptogamic, …

What are three environmental changes that would take place if population density of a species doubled? 
Recycling, because it would make a change to the environment and population density would decrease. Study Population Ecology .

Why is it that night length is considered to be the critical factor in photoperiodism process? 
Since during the night, stomata is open and the rapid flow of carbon dioxide inside gradually took place.

How is the trachea kept open and prevented from getting blocked? 
Answers in one or two word or at the most in one sentences? Study Breathing Process .

What is the function of animal cell? 
An animal cell is a form of eukaryotic cell that makes up many tissues in animals. The animal cell is distinct from other eukaryotes, most notably plant …

What are the pros and cons of fungi? 
Study Fungi Kingdom Review .

Why can new land eventually sustain a forest? 
Because the rock is broken down to a rich soil; because of increasing biotic factors; because of increasing abiotic factors; all of the above. Study …

Explain the kingdom Monera. 
Study Bacterial Cell .

What is a lysosome? 
Study Cell Structure .

Is the terminal phosphate of ATP bound to the substrate? 
This is in relation to how cells use ATP to raise energy level of substrates. Study Cell Respiration .

What is true about 14c? 
Read Evolution Theory .

What are sponges? 
Read Porifera - Complete Zoology Review .

\What are two models of enzyme action? 
Study Enzyme Activity .

Why do some plants stop producing oxygen when the atomospheric carbon doixide levels are too high? 
Or is it that they stop respiration only? Read Photosynthesis Process - The Easiest Online Review .

What phylum do pillbugs belong to? Explain.  
Study Zoology Review - Questions and Answers for Biology Exams .

How nondisjunction affect karyotype of a offspring? 
Study Karyotype and Genetic Diseases .

How do plants and human excrete? 
Read The Excretory System .

Explain the excretion in plants? 
Study Plant Physiology .

Submarines were molded after the...? 
A. Shape of a soil bacterium. B. Shell producing tissue of a clam C. Swim bladder of a fish D. Surface of prickly burr

What is a tissue map? 
Study Cell Tissue .

How many bones are involved in the formation of each half of pelvic girdle? 
Pelvic girdle is composed of two coxal bones and each coxal bone is made up of illium , schim and pubis. So in half of the pelvic girdle , 3 bones are …