About 483,000 results
Open links in new tab
  1. 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, …

  2. Cell | Definition, Types, Functions, Diagram, Division, Theory,

    Oct 7, 2025 · cell, in biology, the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed. A single cell is often a complete …

  3. Biology - Evolution, Genetics, Classification | Britannica

    Sep 30, 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 Portal | Britannica

    The field of biology is subdivided into separate branches for convenience of study, though all the subdivisions share basic principles. Biology encompasses fields such as botany, genetics, …

  5. Biology - Aristotle, Organisms, Cells | Britannica

    Sep 30, 2025 · Biology - Aristotle, Organisms, Cells: Around the middle of the 4th century bce, ancient Greek science reached a climax with Aristotle, who was interested in all branches of …

  6. Cat | Breeds, Origins, History, Body Types, Senses, Behavior ...

    Oct 16, 2025 · An overview of the origins and history of cats, how they are identified, their body types and features, and their senses, behavior, and heredity.

  7. 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 …

  8. Evolution | Definition, History, Types, & Examples | Britannica

    Oct 25, 2025 · Evolution, theory in biology postulating that the various types of living things on Earth have their origin in other preexisting types and that the distinguishable differences are …

  9. Marine biology | Description & Facts | Britannica

    Marine biology, the science that deals with animals and plants that live in the sea. It also deals with airborne and terrestrial organisms that depend directly upon bodies of salt water for food …

  10. Decomposition | biology | Britannica

    Other articles where decomposition is discussed: soap and detergent: Raw materials: …and, because the foam retards biological degradation of organic material in sewage, it caused …