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What moves euglena? 
Study Protists - Definition, Types, Structure .

Why is the high specific heat of water important to a cell? 
Cells are made up mostly of water, but why is water's high specific heat so important for the cell? Study Water Properties .

In evolution, the study of vertebrate forelimbs is related to _______ evidence.  
a anatomical b. biochemical c. fossil d. biogeographical Study Evolution Theory .

Allen and Rose are discussing saprotrophs. Allen says saprotrophic fungi decompose the remains of animals and plants. Rose says saprotrophic fungi remove excess lignin from paper pulp. Who is correct? 
A. Both Allen and Rose are correct. B. Only Allen is correct. C. Neither is correct. D. Only Rose is correct. Study Fungi Kingdom …

Which is not a part of nutrition ingestion excretion assimilation egestion 
Study Physiology Review - Questions and Answers for Biology Exams .

How is a mouth of a crocodile adapted for feeding? 
On the top of the crocodile's snout is its nostrils, eyes, and ears, so that it can submerge most of its body but still be able to track potential prey. …

If O blood group contains anti-a and anti-b antibodies then why it is regarded as universal donor? 
If transferred to recipients having A or B blood group then it will cause agglutination reaction. Study Blood Types Review .

Which of the following is not true about blood types? 
Answers: IA represents antigen A on red blood cells. A person with AB blood has two different antigens on his red blood cells. The allele …

Which of these structures is responsible for ATP production in cells? 
1. chloroplasts 2. mitochondria 3. ribosomes 4. both 1 l& 2 5. both 2 & 3 Read Cell Respiration .

How does the structural difference may have a negative effect on the life-cycle of the weakened virus? 
Since viruses are differentiated in normal and weakened virus, how does they differ from one another? Study Viruses - Definition, Structure, Genetics …

Which association is correct? 
A) chorion-nitrogen gas exchange B) amnion- blood vessels C) allantois- food storage D) placenta- nutrient exchange Study Extraembryonic Membranes …

By convention, the sequence of of bases in a nucleic acid is always written in which direction? 
3' to 5' 5' to 3' or from left to right? Study Nucleic Acid .

Who discovered meiosis and mitosis? 
IN 1880s, A GERMAN BIOLOGIST WALTHER FLEMMING DISCOVERED MITOSIS. MEIOSIS WAS DISCOVERED AND DESCRIBED FOR THE FIRST TIME IN 1876, BY A GERMAN BIOLOGIST …

What is a food chain? 
Study Food Chain .

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...? 
A - an increase in matter , but no increase in the number of icicles B- an interaction between the icicle and the enviorment C- no way for the icicle …

What do all lipids have in common? 
Study Fat Review - Lipids Explained on Biology Questions and Answers .

During the elongation cycle of translation, the A site on a ribosome functions in...  
receiving a new tRNA with the correct amino acid. holding a polypeptide as amino acids are added. attaching the small subunits of rRNA to the large …

Do the mumps virus reproduce or replicate? 
Reproduce or replicate? Study Viruses - Definition, Structure, Genetics and Replication .

Blinking of eye is an example of? 
Study Musculoskeletal .

Why is there variability between specific fibrous proteins? 
My textbook says that globular proteins can have no variability - which I understand because if you took for example amylase, if the amylase molecules …

What are the examples of mollusca?  
Give the characters of each examples. Study Mollusca - Study Guide .

Explain how bacteria are named. 
Study Bacterial Cell .

What is the biological function of fructose? 
Study Carbohydrates Properties Review from Biology Questions and Answers .

Describe fully the structure of a protozoa. 
Study Protists - Definition, Types, Structure .

What is cholesterol? 
Study Fat Review - Lipids Explained on Biology Questions and Answers .

How do pinacocytes aid sponges in feeding ? 
Study Porifera - Complete Zoology Review .

Which are the blood vessels that carry blood to the heart? 
Study The Circulatory System - Complete Review .

What do the peaks in the prey population graph signify? 
At the top the prey population is decreasing or increasing or neither increasing or decreasing. Study Population Ecology .

What is a chloroplast? 
Define plankton. Study Cell Division .

What is the functional advantage of digesting proteins in two stages?  
The first stage being by endopeptidase and then by exopeptidase... Read Digestive System .

Exchange of gases in the alveoli of the lungs takes place by?  
Tell me the right option: (a) osmosis (b) simple diffusion (c) passive transport (d)active transport.

What will happen if mitosis occurs instead of meiosis in the reproductive organs? 
Explain what will happen if mitosis occurs instead of meiosis in the reproductive organs. Study Cell Division .

O Blood group has both antibobies then why dont it cause agglutination with any of blood group A or B as it has A antigen and B antigen respectively? 
Why dont antibodies of o blood group does not cause agglutination reaction with any of antigens in other blood group? Study Blood Types Review .

Why scientist consider Mendel's law of dominance and segregation as valid? 
Mendle's law of dominance and segregation is valid because... Study Mendel's Laws .

Using the character that define life, compare and contrast a plant, a bacterium, and a salt crystal. 
Using the character that define life, compare and contrast a plant, a bacterium, and a salt crystal.

What does science study? 
Chapter 1 section 1-1 the science of bio.

What is mutation? 
Study Evolution Theory .

Function of extra embryonic membrane in reptiles. 
Study Extraembryonic Membranes .

What does homeostasis and evolution have in common? 
Study Homeostasis . Good question!

Name a structure associated with nervous system which is integrated with endocrine system and also secrete hormones.  
I wanted to know the association of endocrine with nervous system? Read Nervous System .

What is pollination? 
The transfer of the pollen grain from the anther to the stigma of a flower in a same plant or another plant of a same kind is called pollination. Read …

What is the significance of pharmaceutical algea? 
Read Protists - Definition, Types, Structure .

Unlike other mammals, female monotremes do not have? 
A. specialized teeth. B. nipples. C. mammary glands. D. hair. Study Mammalian .

Differenciate vascular bundles and vascular tissues. 
Read The Circulatory System - Complete Review .

What is isotonic solution? 
Study Cell Membrane .

What is primary plant metabolism? 
Read Plant Physiology .

What are the major constituents of a cell? 
Read Cell Biology Review .

How many chambers does the human heart have? 
Study The Circulatory System - Complete Review .

Explain phylum. 
Study Life Kingdoms - Monera, Protista, Fungi, Animalia, Plantae, Virus .

What do you mean by primordialutricle? 
Arrangement of protoplasm surrounding a large vacuole at the center, generally found in plant cell is known as Primordialutricle .

Does crossing over takes place only in non-homologous chromosome? 
I want to know whether crossing over takes place only in non homologous chromosomes or homologous chromosomes or both and/or sister/ non-sister chromosomes... …

What are examples of impermeable membranes? 
Do only unfertilized eggs of some fishes are examples? Study Cell Membrane .

How homeostasis occur? 
Read Homeostasis .

How does the body decide which polypeptide to make? 
Study Protein Synthesis Made Easy .

How does excretion in plants take place? 
Study Plant Physiology .

What is the reason for sympathetic nerves to be arised from thoracic & lumbar region of vertebrae? 
Is there some special advantage of having it like that? Study Nervous System .

What is the key characteristic of a plant obtained by asexual reproduction? 
This question is from biology subject and it refers to the topic reproduction in plants and cloning. Read Plants .

How many organ systems are there in humans? 
Read Physiology Review - Questions and Answers for Biology Exams .

Which one of the following combination of the cell parts organizes and controls the reproductive process of the cell? 
A) the nucleus and centrosome b) the cell membrane and centrosome c) the cytoplasm and nucleus d) the nuclear membrane and nucleus Read Cell Division …

What is the main function of the epithelial tissue? How is it adapted to perform this function? 
The epithelial tissue covers the body surface. Read Epithelial .

What factors affect crossing over to occur? 
This is in terms of gene linkage and the chromosomes ability to do so.

What are the names of the proteolytic enzymes found in civet digestive system? 
A civet /ˈsɪvɨt/ is a small, lithe-bodied, mostly nocturnal mammal native to tropical Asia and Africa, especially the tropical forests.

What is the important molecule produced by photosynthesis? 
Study Photosynthesis Process - The Easiest Online Review .

What is the pharmaceutical importance of protozoa? 
Read Protists - Definition, Types, Structure .

What is unusual about pulmonary vein and pulmonary artery? 
Read The Circulatory System - Complete Review .

How does the bacteria store and transmit its genetic information? 
The nucleus is absent in the prokaryotic (bacteria) cell.

Why kidney is called mixed gland? 
Study The Endocrine System .

Define glycosides. 
Read Carbohydrate Properties Review from Biology Questions and Answers .

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

How does ethylene gas cause aging in flowers? 
Does the ethylene gas somehow take the moisture out of the petals and leaves? Read Plant Physiology .

How to detect smell? 
. Olfactory particles enter the nose along with air. . Olfactory particles dissolve in the mucus and reach olfactory receptors. . Olfactory receptors …

Where is the largest number of receptors seen? 
Largest number of receptors are seen in finger and palm? Study Nervous System .

What is synapse? 
Synapse is junction between two neurons. Study Nervous System .

Are humans like annelids monoecious? 
Read Zoology Review - Questions and Answers for Biology Exams .

What is negative feedback? 
Study Homeostasis .

What does the enzymatic assay shows?  
I am not a biochemist but interested to know when we do enzymatic assay of soil samples to determine the activities of enzymes of c and N cycle what enzymatic …

Expalin whether there is coelom in pearl oyster. 
Study Mollusca - Study Guide .

Explain genetic structure and recombination in virus. 
Read Viruses - Definition, Structure, Genetics and Replication .

Name green house gases. 
Study Environmental Issues .

How do viruses evolve? 
Antigenic shift, antigenic drift. Study Viruses - Definition, Structure, Genetics and Replication .

Which of these does not affect the numbers of species in biological communities and ecosystems? 
a. Photosynthesis b. Volcanic eruptions c. Climate change d. Fire

Why are orgamisms belonging to the phylum mollusca protected by calcareous shell? 
Organism belonging to the phylum Mollusca has soft, unsegmented body, thus a hard calcareous shell is present to protect the soft body. Read Mollusca …

What is the difference between a rotavirus and a coronavirus? 
Study Viruses - Definition, Structure, Genetics and Replication .

What is the pharmaceutical significance of protozoans? 
Study Protists - Definition, Types, Structure .

What is the pharmaceutical significance of bacteria, fungi? 
Study Microbiology Review - Questions and Answers for Biology Exams .

Linkage Map Of Chromosome (problem) 
When i was reading Campbell, i got to the "Linkage map". imagine on a chromosome, we have 3 different genes: b, vg, and cn(cn is between b and vg)recombination …

Are biological membranes limiting or not? If limiting, how? 
Biological membranes are limiting or they are not limiting. Please explain with examples. Study Cell Membrane .

How does the MN blood system shows itself? 
Study Blood Types Review .

What is Botany? 
Study Plants .

What is Ramachandran plot? 
Study Protein Structure .

What are the raw materials required for photosynthesis, and from whre are they obtained? 
Study Photosynthesis Process - The Easiest Online Review .

What is keratinisation? 
Hi, can you explain me what is keratinization ,and how does it work to maintain a healthy epidermis? Identify (you can use a diagram to support your …

Can venom antigen trigger an autoimmune response and mask an autoimmune disese such as lupus, etc...? 
The venom can be sea creatures such as cone snail, jelly fish or lion fish, or a spider or centipede such as found in Hawaii. Can the venom wear off leaving …

Though not having any enzyme producing mechanism hoe do the red blood cells respire anaerobically? 
The red blood cells don't possess ribosomes,endoplasmic reticulumn or nucleus to generate new enzymes. Study Blood Questions .

Which pair is NOT related?  
Select one of the options below as your answer: A. cells and tissue B. nucleus and DNA C. cell wall and plants D. chloroplast and animals

To perform photosynthesis, chloroplasts are dependent on what? 
Study Photosynthesis Process - The Easiest Online Review .

Why is it said that a cell without nucleus is without any future? 
Study Cell Nucleus - Definition, Structure and Function .

Why secondary growth is high in spring? 
Study Plant Physiology .

Extra embryonic membranes are derived from? 
Is it from formative or follicle or inner cell mass or trophoblast? Read Extraembryonic Membranes .

Question on fermentation. 
Like _______ fermentation evolved _________ _________ ________ contained ________ and does not use _________.

Which fetal pig glands are endocrine? Which are exocrine? Both? 
The pancreas is both endocrine and exocrine. I'm just not sure about the Thymus, thyroid, liver, adrenal, ovary, and teste are of a fetal pig? Study …

What is the body temperature of pearl oyster? 
Study Mollusca - Study Guide .

Is starch a storage carbohydrate? 
Study Carbohydrates Properties Review from Biology Questions and Answers .

What is incomplete circulatory system? 
Study The Circulatory System - Complete Review .

What is gene?  
Write about its functions? Read Gene .

Make a form of the 5 kingdom classification system, their salient features and examples. 
Study Life Kingdoms - Monera, Protista, Fungi, Animalia, Plantae, Virus .

Give an account of protein synthesis in prokaryotic organism. 
Kindly provide me with immediate answers. Read Bacterial Cell . Note: Good question.

Define virus and explain how it functions. 
Read Viruses - Definition, Structure, Genetics and Replication .

Explain the concept of control by negative feedback? 
A negative feedback loop is a sequence of events that brings about an opposite effect to changes, to restore a system to its original state.

Different steps in the process of nutrition in starfish are? 
1ingestion 2 digestion 3 absorption 4 assimilation 5 egestion Study Echinodermata Phylum - from Biology Questions and Answers .

What media or test we use to isolate or identify algae? 
Agar, streak plate. Read Protists - Definition, Types, Structure .

How do we differentiate red tide from others? 
Study Environmental Issues .

Which factors can influence and continual change in an ecosystem ? 
A.Further Disturbances B.Long Term Climate Changes C.Introduction of nonnative species D.All of the above Study The Environment .

What type of circulation do nematodes have? 
Nematoda have a variety of different circulation characteristics. For example, they use pseudocoel fluids in order to circulate nutrients and get rid of …

What is malnutrition? 
Study Nutrition Vitamins - Easily Explained .

How do your organ systems interact to keep you warm when you enter a cold environment? 
Study Physiology Review - Questions and Answers for Biology Exams .

What are some possible causes of paraplegia? 
What are the muscles that a person experiences permanent paraplegia from a spinal cord injury? Study Nervous System .

How does ingested fat find its way from the intestine into the tissue spaces? 
Is it something to do with the villi which line the inner surface of the small intestine which absorbs nutrients such as fats? read Digestive System …

Why is the stomach wall not digested by its own enzymes? 
Because of muscus? Study Digestion System .

What cause of the different color of pus? 
Green color of pus because of dead neutrophils... Study The Immune System .

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...? 
a) an increase in matter , but no increase in the number of icicle b) an interaction between the icicle and the environment c) no way for the icicle …

Hormone without a specific target organ? 
Read The Endocrine System .

An example of positive feedback is the process by which? 
a.) nerve stimulation inhibits glands to produce hormones b.) production of hormones is regulated by brain and spinal cord c.) accumulation of a hormone …

What is the nature of constituents of food? 
Read Nutrition Vitamins - Easily Explained .

What is the function of adrenaline? 
Study The Endocrine System .

Cryptogams that are heterotropic are included under? 
a) Algae b) Fungi c) Thallophyta d) Tracheophyta e) Cyanophyta Study Plants .

Fungi 
Study Fungi Kingdom Review .

What is the mitochondria? 
Study Cell Structure .

Larva of frog excrete through? 
Study Frog Facts .

A crystal immersed in saturated solution increases in size. How this GROWTH differs from th unicellular organism ? 
Unicellular organism is ameba . Points are required. I HOPE YOU WILL ANSWER ME FAST Study Protists - Definition, …

Small granules found on the endoplasmic reticulum... 
Answer it by telling the name of the cell part or organelle. Study Cell Structure .

Three branches of Biology are: 
zoology, botany, entomology.

I need to calculate the enzyme activity. 
hello. i have the absorbances of my samples and i need to calculate the activity of these enzymes with extinction cofficient. my enzymes are superoxidase …

What are examples of crawling movement? How is crawling, ameoboid, and mesenchymal-like movements different? 
Movements by cytoskeleton, examples and differences. Read Cytoskeleton .

Given A Transverse Section Image Of An Ovule, How Do You Demarcate The Inner Integument And Outer Integument? How Do You Differentiate The Cell Layers? 
I am trying to characterize an image obtained from histology. Any help is appreciated. Study Gametogenesis .

wWich part of the brain controls respiration process? 
1.cerebrum 2.cranium 3.cerebellum 4.medulla Read Breathing Process .

Adaptational advantage of the feature? 
Study Evolution Theory .

Which kingdom is the connected link in all 5 kingdoms? 
Study Life Kingdoms - Monera, Protista, Fungi, Animalia, Plantae, Virus .

What are the double-membrane bound organelles? 
One finds that there are ONLY three double-membrane bound organelles. Study Cell Structure .

What are edaphic factors? 
Read The Environment .

How do coelenterata adapt to there enviroment? 
Study Cnidarians - Study All About Them .

How to find out male and female frogs? 
How find male & female frog? Read Frog Facts .

What are macromolecules? 
Study Nutrition Vitamins - Easily Explained .

How is the embryos of gymnosperms protected? 
How do they protect their seeds? Read Gymnosperms .

Why do animals chew the gut? 
Read Digestion System .

Why herbivorous fish posses long digestive tract? 
May be due to the fact that, herbivorous feed on plants and thus the digestion process of plants require more time to complete, Study Fish Facts .

What role does photosynthesis play in the carbon cycle? What about the calvin cycle? 
Photosynthesis has a huge role in the carbon cycle and in the Calvin cycle because photosynthesis is a way of transforming carbon dioxide into glucose, …

What is incomplete doble circulation? 
Read The Circulatory System - Complete Review .

What is the similarity between obelia and aurelia? 
Study Cnidarians - Study All About Them .

How are birds adapted in the aerial habitat? 
How do birds eat? Study Birds .

What is a light reaction in photosynthesis? 
Study Photosynthesis Process - The Easiest Online Review .

What is the equation of respiration? 
Study Cell Respiration .

Which substances most affect haematopoiesis? 
Erythropoietin? Amino acids? Growth Hormone? ADH? Iron? Calcium? Vitamin D? Study Blood Questions .

How are body symmetry and cephalization related? 
Study Zoology Review - Questions and Answers for Biology Exams .

Why is virus an intracellular obligate parasite? 
Read Viruses - Definition, Structure, Genetics and Replication .

How many phases are there in a cell cycle? 
How does mitosis work? Study Cell Division .

How does the dialysis machine work? 
Study The Excretory System .

Do male son always receive only the y chromosome from the father? 
It mean that male son only receive x chromosome from mother and how this is link x-linked genetic disease? Study Sex Chromosomes .

Who discovered the cell? 
Read Cell Biology Review .

How is nitrogen used by animals? 
I don't really have a tentative answer to this question, I'm looking for one. I understand how nitrogen is used in plants, but I would like to know how …

Why did the heat-killed bacteria didn't cause the death to the mice? 
In Griffith Experiment he injected the mice with a mixture of the heat-killed disease-causing bacteria with the live & harmless bacteria the mice have …

Movie making cell system labeled with cell parts? 
Actors=(cell part of cell system) Director=(cell part of cell system) Producer=(cell part of cell system) Sound Manager= (cell part of cell system) …

What makes hydras different than other cnidarian? 
Study Cnidarians - Study All About Them .

Some viruses and tumor cells evade the immune system by inhibiting Signal I to occur? What is signal I?  
Some viruses and tumor cells evade the immune system by inhibiting Signal I to occur? What is signal I? Study The Immune System .

The interstitial fluid of most marine invertebrates is what to seawater 
a. isotonic b. hypertonic c. hypotonic d. none of these Study Zoology Review - Questions and Answers for Biology Exams .

The classic examples Lamarck used to explain the concept of use and disuse is the enlongated neck of the giraffe. Why not the others animal who eats the grass? 
USE AND DISUSE In this part of his theory, Lamarck suggests that by continually using a structure or process,that structure or process …

If we wanted to produce human insulin or human blood clotting factor in bacteria, what problems might we encounter? 
If a patient had a defective gene for insulin or blood clotting factor and we wanted to replace the patient's defective gene with a functioning gene for …

What happens when oxygen is released at cells? 
Only thing I know that 5% of oxygen gets metabolized by tissue cells. Read Cell Respiration .

What are the types of fibers in poriferans ? 
Fibers in poriferans are made of collagen and .......? Study Porifera - Complete Zoology Review .

How would you represent the alleles of a plant that is heterozygous for seed color? 
The allele got yellow peas is dominant to the allele for green peas. Study Genetics .

Why the ramachandran plot is studied in protein structure? 
The two torsion angles of the polypeptide chain, also called Ramachandran angles (after the Indian physicist who first introduced the Ramachandran plot), …

One recognizable difference between plant and animal cells is that...? 
A. animal cells have one or more large vacuoles, and plant cells do not. B. plant cells have thick, rigid cell walls. Animal cells do not have …

What are the disadvantages of single circulatory system? 
Read The Circulatory System - Complete Review .

How do genetic mutations affect the phenotype and genotype of offsprings? 
Mutations can cause a cell to produce an incorrect number of proteins during protein synthesis and the phenotype of the organism would be different from …

Why is glycerol not a carbohydrate? 
Study Carbohydrates Properties Review from Biology Questions and Answers .

Of which is DNA made? 
Read Nucleic Acid .

Why does succession usually make a community more stable? 
A community is not stable so how does succession make it more stable? Read Ecological Succession .

How are annelids more advanced than nemalodes? 
Study Annelids - Easy Review .

In an Osmosis test for Microbiology what would happen to S.epidermis and S cervesiae bacteria in 1, 7,15% NaCl? 
Would the growth for each bacteria in the different solutions show no growth, minimal, moderate, or significant and why? Read Microbiology Review . …

Are cnidarians real? 
Study Cnidarians - Study All About Them .

Evolution is defined as? 
Is it hereditary changes in living organisms over time? Read Evolution .

Explain the process of amoeboid movement and explain the role this process play in the immune system of animals. 
Amoeboid movements are created by cytoplasmic movements and plasma membrane projections called pseudopods. Study The Immune System .

How many atoms are there in a single peptide unit? 
4, they are C, O, N, H. Study Protein Structure .

All food are nutrients but all nutrients are not food -explain. 
Food is any substance1 consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, …

What do we need to know about an animal and its environment? 
It's bone structure, digestive system, circulatory system, or it's brain size?

The haematopoietic stem cell differentiates into four main precursor lines... 
List the four lines, the formed elements produced and list their main function. Study Blood Questions .

Parthenogenesis is.. 
A. asexual reproduction by way of budding of a new individual from the parent B. reproduction by way of haploid females laying haploid eggs that hatch …

Define monosaccharide.  
Read Carbohydrate Properties Review from Biology Questions and Answers .

Compare single-loop circulation and double-loop circulation. 
Study The Circulatory System - Complete Review .

"Alternation of Generation" is present in...? 
Study Plant Classification .

Different breeds of dogs represent...? 
Study Evolution Theory .

Which tissue is found in spongy stem of aquatic plants? 
Study Porifera - Complete Zoology Review .

Describe how mammals regulate their body temperature. 
1. Use of the hair on their skins During cold weather the hair erector pili muscles contract and the angle between them and the skin increases. The …

Vertebrates, insects, humans, protozoans, and mollusks which of these are considered the most successful animals that have ever evolved? 
Big debate about which of these is the right answer mainly between insects and humans. Study Zoology Review - Questions and Answers for Biology Exams …

What is a bacteriophage? 
Read Viruses - Definition, Structure, Genetics and Replication .

Why are most plant tissue dead? 
Read Plant Tissues .

How does the centromere looks like in fact? 
I wanna known how does the centromere looks like in fact? Every one know the structure of DNA and we can draw it as a double helix and we know also the …

in which chromosome X we find the genes of female sexual characteristics? .. Is it possible to find the genes of female sexual characteristics on the chromosome X of the male ? 
In which chromosome X we find the genes of female sexual characteristics? Is it possible to find the genes of female sexual characteristics on the chromosome …

Why does a virus cause different diseases in different areas of the world? 
What are the possible reasons as to why EBV causes such different diseases in these different areas? Read Viral Infection .

How do cells increase in numbers? 
Read Cell Division .

Define prochordata and their classification. 
Study Chordates - Easy Zoology Review .

Which of the following prepares itself everymonth to received and nurture the growing embryo? 
1. Placenta 2. Uterus 3. Oviduct 4. Vagina Study Embryology Review - Questions and Answers for Biology Exams .

What is active transport? 
Its the movement of ions from an area of high concentration to an area of low concentration against the concentratioin gradient. This means it requires …

Why don't things at the top of the food chain have large populations? 
Things at the top of the food chain eat, but are not eaten. If they're "top dog" in the wild, then why aren't there lots of them in the wild? They can …

Why do secretions need to be controlled? 
Study Secretion - Biology Questions and Answers Review .

What is the basic characteristic of life? 
THE MOST BASIC CHARACTERISTIC OF LIFE IS REPRODUCTION. REPRODUCTION OCCURS AT DIFFERENT LEVELS OF ORGANIZATION.

What is the difference between fungi metabolism and bacterial metabolism? 
Study Microbiology Review - Questions and Answers for Biology Exams .

What is a nematodes's life cycle? 
Study Nematoda - from Zoology Review .

Why is ammonia a toxic waste of catabolism? 
Study The Excretory System .

How lenticels allow gas exchage through the periderm? 
Suberized cork cells are compactly arranged and an impermeable barrier to water and gases. Study Plant Physiology .

What is ecological succession? 
Read Ecological Succession .

Are there any valves present in frog or reptiles heart like human heart? 
In human heart we can observe different types of valves. They are Tricuspid valve, Bicuspid valve, pulmonary valves and aortic valves. What about the …

What are the characteristics of nematodes? 
Read Nematoda - from Zoology Review .

What do the larvae of echinoderms indicate about the evolution of echinoderms? 
Study Echinodermata Phylum - from Biology Questions and Answers .

The stem of aquatic plant is covered with waxy substance... 
It keeps the leaf from drying out. Read Plant Tissues .

Which feature of echinoderms gives their phylum its name? 
Study Echinodermata Phylum - from Biology Questions and Answers .

What element distinguishes organic chemicals from inorganic chemicals?  
Study Biochemistry Review - Questions and Answers for Biology Exams .

What is microbe biology? 
Study Microbiology Review - Questions and Answers for Biology Exams .

Cross one carrier for the Tay-Sachs allele with one who is not a carrier. 
Complete a Punnett Square and write out the genotype and phenotype probabilities of the offspring. Cross an albino female and a male with a heterozygous …

What kind of food acquisitions do phylum porifera have? 
Study Porifera - Complete Zoology Review .

Why is human insulin not produced directly by cloning the human insulin gene into bacteria? 
Why might a scientist want to use gene replacement rather than gene addition? Study Genetic Engineering .

What is protein diversity? 
Read Protein Structure .

Why do we have food chains? 
Study Food Chain .

Explain the difference in solubility (in water) between lipids and the products of of their hydrolysis. 
Fatty acids and glycerol are the products of lipid hydrolysis. Fatty acids have a polar carboxyl group while glycerol has polar hydroxyl groups hence can …

Describe how the organisms maintain the chromosome numbers during multiplication of sexual reproduction. 
HOW THEY DIVIDE BEFORE FUSION TO MAINTAIN THE CHROMOSOME NUMBER IN THE DAUGHTER CELL. Study Gametogenesis .

Differentiate between prokaryotes cell and eukaryotes cell. 
Prokaryotes cell-it is primitive cell small in size. Nucleus does not have nuclear membrane. Membrane organelles are absent. Eukaryotes cell-it is advanced …

Do sponges have self fertilization or not? 
Read Porifera - Complete Zoology Review .

Do they have a skeleton? 
May use gastrovascular cavity as hydrostatic skeleton? Study Zoology Review - Questions and Answers for Biology Exams .

What is one similarity between the process of cell division in an animal cell and cell division in a plant cell? 
Has to deal with the process of cell division in animal and plant cells. Read Cell Division .

Which group of animals does NOT have two sets of paired limbs? 
a)reptiles b)tunicates c)fishes d)amphibians Study Zoology Review - Questions and Answers for Biology Exams .

What is the job of the blood cell? 
Read Blood Questions .

Which would lead one to except linkage of genes if we assume genes are on chromosomes?  
a)Multiple alleles sometimes occur b)The number of hereditary traits always exceeds the number of chromomsomes c)The most complex organism does not always …

Write notes on female gametophyte. 
Study Plant Classification .

What is fertilization? 
Fertilization is the fusion of 2 gametes the male gamete with female gamete. Study Reproductive System .

What is the tat pathway? 
It is a protein transport system for bacteria. Read Cell Biology Review .

What are the effects of high oxygen concentration on the physiology of plants?  
I think it might bring about tissue toxicity. Study Plant Physiology .

How we can demonstrat the action of mass flow? 
A set-up we can construct to show mass flow.

What is karyomorphometry? 
Study Genetics .

Explain joint segregation? 
Study Genetics .

What are plants? 
Plants are living things that has various parts and help us in many much ways. Read Plants .

What is a cell? 
A building block of life.

What is the role of light reaction and dark reaction? 
Study Photosynthesis Process - The Easiest Online Review .

Which of the following would you find in a plant cell but not in an animal cell? 
A. cell membrane B. endoplasmic reticulum C. nucleus D. chloraplast Read Cell Structure .

General concept of homeostasis. 
Study Homeostasis .

Why does beed liver have a higher concentration of the catalase enzyme than chicken liver? 
I heard it was due to the fact that beef has a higher protein content but I don't think that is true. Study Cell Structure .

Under which condition does amylase act on starch most quickly? 
Under which condition does amylase act on starch most quickly? Read Carbohydrates Properties Review from Biology Questions and Answers .

What are limiting factors? 
Read Population Ecology .

Do plants absorb nutrients through their leaves? 
Are there hormones that can be sprayed on leaves so that the plant will produce exceptional fruit or vegetables? Read Plant Physiology .

Why fats do have thermal isolation properties? 
Study Fat Review - Lipids Explained on Biology Questions and Answers .

Define second messenger? 
Study Cell Biology Review .

Who authored the book the origin of life? 
Charles Darwin? Study Origin of Life .

Parotid gland secretes saliva in which portion of oral cavity ? 
A.Superior and posterior B. Posterior Read Digestion System .

What are two features of nematodes that make them successful parasites? 
Two features other than a cuticle and pseudocoel. Study Nematoda - from Zoology Review .

What genus do humans belong to? 
The scientific name for humans is Homo Sapiens. What genus do humans belong to? Read Life Kingdoms - Monera, Protista, Fungi, Animalia, Plantae, Virus …

What is a homozygous? 
Read Gene .

If a person is experiencing excessive thirst do u give glucagon or ADH? 
What is the difference between glucagon and ADH? Read The Endocrine System .

How to calculate the gain of negative feedback? 
Also , how can i know if the gain is positive or negative? Study Homeostasis .