
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 - 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.
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.
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, …
Eukaryotic vs. prokaryotic cells: Key differences explained
Learn about the difference between prokaryotes and eukaryotes.
Molecular genetics | biology | Britannica
Other articles where molecular genetics is discussed: heredity: Molecular genetics: The data accumulated by scientists of the early 20th century provided compelling evidence that chromosomes …
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.
Branches of 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 - Evolution, Genetics, Species | Britannica
Dec 5, 2025 · Biology - Evolution, Genetics, Species: In his theory of natural selection, which is discussed in greater detail later, Charles Darwin suggested that “survival of the fittest” was the basis …