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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, evolution, genetics, …

  2. 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.

  3. 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, marine …

  4. Reproduction | Definition, Examples, Types, Importance, & Facts ...

    Nov 4, 2025 · Reproduction, process by which organisms replicate themselves. Reproduction is one of the most important concepts in biology: it means making a copy, a likeness, and thereby providing …

  5. Biology - Evolution, Genetics, Microbiology | Britannica

    Seventeenth-century advances in biology included the establishment of scientific societies for the dissemination of ideas and progress in the development of the microscope, through which scientists …

  6. Genetics | History, Biology, Timeline, & Facts | Britannica

    5 days ago · Genetics forms one of the central pillars of biology and overlaps with many other areas, such as agriculture, medicine, and biotechnology. Learn more about the history, biology, areas of …

  7. History of science - Evolution, Genetics, Taxonomy | Britannica

    History of science - Evolution, Genetics, Taxonomy: The study of living matter lagged far behind physics and chemistry, largely because organisms are so much more complex than inanimate bodies or forces.

  8. Biology - Evolution, Genetics, Species | Britannica

    Aug 22, 2025 · Qualitative and quantitative analyses in biology make use of a variety of techniques and approaches to identify and estimate levels of nucleic acids, proteins, carbohydrates, and other …

  9. Definition, Examples, Levels, & Classification - Britannica

    Dec 2, 2025 · What is taxonomy in biology? Why do scientists use taxonomy to classify living things? What are the main taxonomic ranks or groups? How do scientists name organisms using scientific …

  10. Cell | Definition, Types, Functions, Diagram, Division, Theory, & Facts ...

    Dec 1, 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 organism in itself, …