
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, …
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 …
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 related …
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.
Cell - Differentiation, Organelles, Cytoplasm | Britannica
Dec 10, 2025 · Roger Williams University Open Publishing - Introduction to Molecular and Cell Biology - Introduction to Cells National Center for Biotechnology Information - The Origin and Evolution of Cells
Cell - Differentiation, Organelles, Cytoplasm | Britannica
Dec 10, 2025 · Over a period of time, the genetic information in RNA sequences was transferred to DNA sequences, and the ability of RNA molecules to replicate directly was lost. It was only at this point …
Biology - Aristotle, Organisms, Cells | Britannica
Dec 5, 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 knowledge, …
Asexual reproduction | biology | Britannica
The possibilities for debate that arise in these special cases, however, do not in any way invalidate the general usefulness of the distinctions as conventionally made in biology.
Bryology | botany | Britannica
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Life - Genetics, Evolution, Biology | Britannica
Dec 13, 2025 · Life - Genetics, Evolution, Biology: All organisms on Earth, from the tiniest cell to the loftiest trees, display extraordinary powers.