![]() ![]() ![]() ![]() The preservation of favorable variations and the rejection of injurious variations Natural selection, then, can be defined as the differential reproduction of alternative hereditary variants, determined by the fact that some variants increase the likelihood that the organisms having them will survive and reproduce more successfully than will organisms carrying alternative variants.ĭarwin's definition of natural selection his book "On The Origin Of Species By Means Of Natural Selection or the Preservation Of Favoured Races In The Struggle For Life" is: Natural selection, a process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype or genetic constitution. Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. ![]()
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