
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 | 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 - 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.
Niche | Habitat, Species Interactions & Adaptations | Britannica
CITE Feedback principle of competitive exclusion biology Also known as: Gause’s hypothesis, Gause’s principle, Grinne (Show More)
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, …
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 …
Cell | Definition, Types, Functions, Diagram, Division, Theory, & Facts ...
Dec 10, 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, …
Asexual, Sexual, Reproductive Strategies - Britannica
Nov 4, 2025 · George M. Moffett Professor Emeritus of Biology, Princeton University. Author of The Evolution of Complexity by Means of Natural Selection and others.
Reproduction | Definition, Examples, Types, Importance, & Facts ...
Dec 16, 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 …
biology - Students | Britannica Kids | Homework Help
The scientific study of living things is called biology. Biologists strive to understand the natural world and its living inhabitants—plants, animals, fungi, protozoa, algae,…