Biology | Definition, History, Concepts, Branches, Facts | Britannica Biology is a branch of science that deals with living organisms and their vital processes Biology encompasses diverse fields, including botany, conservation, ecology, evolution, genetics, marine biology, medicine, microbiology, molecular biology, physiology, and zoology
Biology archive | Science | Khan Academy The biology archive contains legacy biology content, and is not being updated with new content For our most up-to-date, mastery-enabled courses, check out Middle School Biology, High School Biology and AP Biology!
What is Biology? The Living Science of Life Biology is the study of living organisms and the processes that sustain them It explores how life begins, how it grows, how it adapts, and how it interacts with the environment
Cell | Definition, Types, Functions, Diagram, Division, Theory, Facts . . . Usually microscopic in size, cells are the smallest structural units of living matter and compose all living things Most cells have one or more nuclei and other organelles that carry out a variety of tasks Some single cells are complete organisms, such as a bacterium or yeast