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What is Natural selection in Biology? PDF | Download eBooks

Learn Natural selection definition in biology with explanation to study “What is Natural selection”. Study natural selection explanation with biology terms to review biology course for online degree programs.

Natural selection Definitions:

  1. Natural selection occurs when the natural environment "selects" for the propagation of certain traits among naturally occurring variant traits in the population.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



  2. Natural selection is a process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Natural selection Explanation:

Natural selection was first proposed by Darwin. The individuals with the traits best suited for survival in a particular environment are naturally selected. For example if a white colored and black colored moth are placed at a place that has predators, the moth that is better able to camouflage and hide from the predators will be naturally selected to thrive in that environment.

Natural selection Explanation:

Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations. Natural selection happens on its own, with time. For example if two different species of an animal are present in an environment, only the one that is more fit for survival in the environment will thrive.

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