More than 1800 Biology Questions

Easily Study All Biology Topics

Biology Questions and Answers was specially designed, written, and organized to make learning biology easier. More than 1800 Q&As, 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

By following  the logical sequence of questions for each subject, from basic concepts to more advanced ones, you will learn more than ever. Discover how to build your knowledge of biology step by step, through intelligent sequences of Q&As.

Choose a branch of biology


135 logically organized Q&As, 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 Q&As designed to make learning biology’s main subjects, such as cell structure, cell division, photosynthesis, and protein synthesis, easier.


Familiarize yourself with bacteria, protists, viruses, and fungi with 59 Q&As spanning the basic concepts to more advanced ones.


242 Q&As can be found here covering the main phyla: poriferans, cnidarians, flatworms, roundworms, annelids, arthropods, molluscs, echinoderms, and chordates. 


Discover how easy it is to study and understand everything about physiology by using these logical sequences of 506 Q&As.


Learn everything you need to know at the high school level about embryonic development and extraembryonic membranes through just 40 Q&As.


From plant classification to plant physiology, we cover the main subjects of botany with 141 Q&As written by biology teachers.


These 139 Q&As are tailored to help you review fundamental concepts as well as Mendel's laws, non-Mendelian inheritance, linkage, and more.


Discover known facts and hypotheses on the origin of life and the theory of evolution by reviewing these 50 Q&As.


Imagine learning ecology through just 140 Q&As 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 common diseases, when you review these 131 Q&As.

Learn faster

  • Choose a subject to learn
  • Study the sequence of Q&As from first to last 
  •  Move on to the next Q&A once you've learned everything in the one you are studying
  • After the last one, review all Q&As
  • Remember to bookmark this page

Featured Subjects

Ready to study biology? Go to biochemistry!