
Evolution | Definition, History, Types, & Examples | Britannica
3 days ago · Evolution, theory in biology postulating that the various types of living things on Earth have their origin in other preexisting types and that the distinguishable differences are due to …
Criminology - Causes, Theories, Prevention | Britannica
Sep 13, 2025 · Criminology - Causes, Theories, Prevention: Biological theories of crime asserted a linkage between certain biological conditions and an increased tendency to engage in …
Biological psychology | Neuroscience, Behavior & Mental Health
Biological psychology, the study of the physiological bases of behaviour. Biological psychology is concerned primarily with the relationship between psychological processes and the underlying …
Biological development | Definition, Stages, Examples, Theory,
Biological development can be defined as the series of progressive, nonrepetitive changes that occur during the life history of an organism.
Biology | Definition, History, Concepts, Branches, & Facts | Britannica
Sep 30, 2025 · According to a theory proposed in 1855 by German pathologist Rudolf Virchow, “all living cells arise from pre-existing living cells.” That theory appears to be true for all living …
Philosophy of biology | Definition, History, & Facts | Britannica
The sharp increase in understanding of biological processes that has occurred since the mid-20th century has stimulated philosophical interest in biology to an extent unprecedented since the …
War - Conflict, Causes, Consequences | Britannica
Sep 29, 2025 · Contemporary theories of the causes of war divide roughly into two major schools. One attributes war to certain innate biological and psychological factors or drives, the other …
Aging | Definition, Process, & Effects | Britannica
Sep 22, 2025 · What is aging in biological terms? What are some visible signs of aging in humans? How does aging affect our cells? What are some scientific theories that explain why …
Why Do We Age? | Why Humans Age, Telomeres, Genetics, …
Sep 21, 2025 · No single theory explains aging entirely, but some, such as the genetic theory and oxidative damage theories, offer detailed insights. The genetic theory of aging suggests that …
Biological determinism | Definition, Heredity, & Eugenics - Britannica
Biological determinism, the idea that most human characteristics, physical and mental, are determined at conception by hereditary factors passed from parent to offspring. Biological …