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  1. Biology | Definition, History, Concepts, Branches, & Facts | Britannica

    Dec 5, 2025 · Biology is a branch of science that deals with living organisms and their vital processes. Biology encompasses diverse fields, including botany, conservation, ecology, …

  2. Branches of Biology Portal | Britannica

    Taxonomy, in a broad sense the science of classification, but more strictly the classification of living and extinct organisms—i.e., biological classification. The term is derived from the Greek …

  3. Biology - Evolution, Genetics, Classification | Britannica

    Dec 5, 2025 · Biology - Evolution, Genetics, Classification: There are moments in the history of all sciences when remarkable progress is made in relatively short periods of time.

  4. Biology and its branches | Britannica

    Species, in biology, classification comprising related organisms that share common characteristics and are capable of interbreeding. This biological species concept is widely used in biology and …

  5. Biophysics | Molecular Biology, Physics & Chemistry | Britannica

    Biology, which may be viewed as a general subject pervading biophysical study, is evolving from a purely descriptive science into a discipline increasingly devoted to understanding the nature …

  6. Science | Definition, Disciplines, & Facts | Britannica

    3 days ago · The biological sciences —such as biology and medicine —study the organic world of life and its processes. The social sciences study the social and cultural aspects of human …

  7. 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).

  8. 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 …

  9. 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 …

  10. Biochemistry | Definition, History, Examples, Importance, & Facts ...

    Dec 12, 2025 · The term biochemistry is synonymous with two somewhat older terms: physiological chemistry and biological chemistry. Those aspects of biochemistry that deal with …