| A | B |
| biochemistry | the study of chemical processes in living organisms |
| biotechnology | the use of living systems and organisms to develop or make useful products |
| ecology | study of the relationships that living organisms have with each other and with their natural environment |
| genetics | study of the principles of heredity and the variation of inherited traits among related organisms |
| phylogenics | study based on evolutionary development or history |
| biophysics | uses the methods of, and theories from, physical science to study biological systems |
| paleobiology | study of the forms of life existing in prehistoric or geologic times |
| neurobiology | branch of biology that deals with the anatomy and physiology and pathology of the nervous system |
| Mycology | the study of fungi |
| histology | study of cells and tissue, a microscopic branch of anatomy |
| geobiology | science that combines geology and biology to study the interactions of organisms with their environment |
| ethnobiology | study of the past and present human interactions with the environment |
| chronobiology | science that studies time-related phenomena in living organisms |
| botany | scientific study of plants |
| herpetology | study of reptiles and amphibians |