https://www.britannica.com/science/variation-biology

Variation: Variation, in biology, any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences ...

https://evolution.berkeley.edu/evolibrary/article/evo_17

Without genetic variation, some of the basic mechanisms of evolutionary change cannot operate. There are three primary sources of genetic variation, which we will learn ... The meaning of genetic variation, a classroom activity for grades 9-12 .

https://www.nature.com/scitable/definition/evolution-78

Evolution is a process that results in changes in the genetic material of a population ... Evolutionary processes depend on both changes in genetic variability and ...

https://www.yourgenome.org/facts/what-is-genetic-variation

Feb 4, 2015 ... Genetic variation is a term used to describe the variation in the DNA ... Evolution relies on genetic variation that is passed down from one ...

https://www.khanacademy.org/science/high-school-biology/hs-evolution/hs-evolution-and-natural-selection/v/variation-in-a-species

How variation can be introduced into a species. ... Evolution and natural selection . Introduction to evolution and natural selection · Ape clarification.

https://www.biology-online.org/dictionary/Variation

Jan 21, 2018 ... Definition ... In biology, variation refers to the differences or deviations (e.g. in ... In genetics, variation refers to an individual that possesses ...

https://en.wikipedia.org/wiki/Genetic_variation

Genetic variation describes the difference in DNA among individuals. There are multiple .... Mayr E. (1970): Populations, species, and evolution – An abridgment of Animal species and evolution. The Belknap Press of Harvard University Press,  ...

http://www.nas.edu/evolution/Definitions.html

Definitions of Evolutionary Terms. Adaptation: The adjustment or changes in behavior, physiology, and structure of an organism to become more suited to an ...

https://courses.lumenlearning.com/boundless-biology/chapter/population-genetics/

Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. Genetic ...

https://www.sciencedaily.com/terms/evolution.htm

One definition of a species is a group of organisms that can reproduce with one ... traits, resulting in heritable differences (genetic variation) between organisms.