
Biology | Definition, History, Concepts, Branches, & Facts | Britannica
Sep 30, 2025 · Biology is a branch of science that deals with living organisms and their vital processes. Biology encompasses diverse fields, including botany, conservation, ecology, …
Branches of Biology Portal | Britannica
Louis Pasteur was a French chemist and microbiologist who was one of the most important founders of medical microbiology. Pasteur’s contributions to science, technology, and …
Biology and its branches - Britannica
An extremely broad subject, biology is divided into branches. The current approach is based on the levels of biological organization involved (e.g., molecules, cells, individuals, populations) …
the sciences - Students | Britannica Kids | Homework Help
Biological science deals with the relationships between all living things, their environments, and the need to maintain certain conditions to preserve life. Despite their apparent differences, all …
Physical science | Definition, History, & Topics | Britannica
The physical sciences do not study living things (though the principles and methods of the physical sciences are used in biophysics to investigate biological phenomena).
Biological psychology | Neuroscience, Behavior & Mental Health
Biological psychology, the study of the physiological bases of behaviour. Biological psychology is concerned primarily with the relationship between psychological processes and the underlying …
Evolution | Definition, History, Types, & Examples | Britannica
4 days ago · Genetics, a science born in the 20th century, reveals in detail how natural selection works and led to the development of the modern theory of evolution.
Biochemistry | Definition, History, Examples, Importance, & Facts ...
Oct 18, 2025 · The term biochemistry is synonymous with two somewhat older terms: physiological chemistry and biological chemistry. Those aspects of biochemistry that deal with …
Anatomy | Definition, History, & Biology | Britannica
Oct 10, 2025 · anatomy, a field in the biological sciences concerned with the identification and description of the body structures of living things. Gross anatomy involves the study of major …
Retrovirus | Definition, Examples, Diseases, Replication, & Facts ...
Sep 26, 2025 · The action of reverse transcriptase makes it possible for genetic material from a retrovirus to become permanently incorporated into the DNA genome of an infected cell; the …