Easily Study All Biology Topics

Based on theory of knowledge and brain science, Biology Q&As was specifically designed, written and organized to make learning biology easier. More than 1800 bite-sized 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


Biochemistry

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.


Microbiology

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


Zoology

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


Physiology

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


Embryology

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


Botany

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


Genetics

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


Evolution

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


Ecology

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.


Diseases

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

More Subjects