Mar 20, 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, …

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 …

Mar 20, 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. Such leaps in …

Mar 20, 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, …

Mar 17, 2026 · A cell, in biology, is the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed. A single cell may be a complete …

Mar 20, 2026 · Biology - Origin, Evolution, Life: If a species can develop only from a preexisting species, then how did life originate? Among the many philosophical and religious ideas advanced to answer …

Mar 20, 2026 · Biology - Evolution, Natural Selection, Adaptation: As knowledge of plant and animal forms accumulated during the 16th, 17th, and 18th centuries, a few biologists began to speculate …

Cell biology is the branch of science that studies the structure, function, and behavior of cells—the fundamental units of living organisms.

Mar 20, 2026 · Biology - Cell Discovery, Microscopy, Histology: Of the five microscopists, Robert Hooke was perhaps the most intellectually preeminent. As curator of instruments at the Royal Society of …

Mar 11, 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 …