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

    Jan 12, 2026 · 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 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 …

  3. Biology - Evolution, Genetics, Classification | Britannica

    Jan 12, 2026 · 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 - Aristotle, Organisms, Cells | Britannica

    Jan 12, 2026 · 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 knowledge, …

  5. Life - Genetics, Evolution, Biology | Britannica

    Jan 21, 2026 · Life - Genetics, Evolution, Biology: All organisms on Earth, from the tiniest cell to the loftiest trees, display extraordinary powers.

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

    Jan 16, 2026 · 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, …

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

    Jan 29, 2026 · 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 …

  8. Life | Definition, Origin, Evolution, Diversity, & Facts | Britannica

    Jan 21, 2026 · The several branches of science that reveal the common historical, functional, and chemical basis of the evolution of all life include electron microscopy, genetics, paleobiology …

  9. Biology - Origin, Evolution, Life | Britannica

    Jan 12, 2026 · Biology - Origin, Evolution, Life: If a species can develop only from a preexisting species, then how did life originate?

  10. Drake Maye | Stats, Draft, Patriots, Super Bowl, & Facts | Britannica

    19 hours ago · Drake Maye is an American football quarterback who plays for the New England Patriots of the NFL. In just his second season (2025) in the league, Maye led the Patriots in a historic …