More than 1800 Biology Questions

Easily Study All Biology Topics

Biology Questions and Answers was specifically designed, written, and organized to make learning biology easier. More than 1800 questions and answers, covering all of the primary branches and subjects in biology, are available to make studying biology as easy for you as possible.

Biology Questions and Answers

Simply follow the logical sequence of questions on each subject, ranging from basic concepts to more advanced ones, and you will find your knowledge base expanding in myriad directions. Discover how to build your knowledge of biology step by step, through our intelligent sequences of questions and answers.

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135 logically organized questions and answers, starting with the basic concepts and moving on to water properties and mineral salts, carbohydrates, lipids, proteins, enzymes, and nucleic acids.

Cell Biology

Review cell biology through 204 questions and answers designed to make learning biology’s main subjects, like cell structure, cell division, photosynthesis, and protein synthesis, easier.


Familiarize yourself with bacteria, protists, viruses, and fungi with 59 questions and answers spanning the basic concepts to more advanced ones.


242 questions and answers can be found here covering the main phyla: poriferans, cnidarians, flatworms, roundworms, annelids, arthropods, mollusks, echinoderms, and chordates. 


Discover how easy is to study and understand the entire physiology, using logical sequences found in 506 questions and answers.


Learn everything you need to know at the high school level about embryonic development and extraembryonic membranes in just 40 questions and answers.


From plant classification to plant physiology, we cover the key botany subjects posed by biology teachers with 141 question and answers.


These 139 questions and answers are tailored to help you review fundamental concepts as well as Mendel's laws, non-mendelian inheritance, linkage, and more.


Discover the facts and hypotheses that surround the origin of life and evolution theory by reviewing these 50 questions and answers.


Imagine learning ecology through just 140 questions and answers structured to teach you about ecosystems, biomes, food chains, biodiversity, ecological interactions, ecological succession, population, and environmental issues.


Do you know the difference between atherosclerosis and arteriosclerosis? You will, plus so much more on the many primary diseases present in our environment, when you review these 131 questions and answers.

Accelerate Your Learning by:

  • Choosing your desired subject
  • Proceeding through the sequence of Q&As in order of presentation, first to last 
  •  Studying each one, one at a time, continuing on to the next Q&A once you've learned the preceding one
  • Going back, once you’ve reached the end of that section, and reviewing each Q&A
  • Remembering to bookmark the page

Featured Subjects

Ready to Study Biology? Go to Biochemistry!