darwins theory of natural selection
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Darwin's Theory of Evolution by Natural Selection
Darwin's Theory of Evolution by Natural SelectionMore individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.
The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits.
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