favorable traits

Does Natural Selection Require Heritable Traits?

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Does Natural Selection Require Heritable Traits? Natural selection needs some starting material, and that starting material is heritable variation. For natural selection to act on a feature, there must already be variation (differences among individuals) for that feature. Also, the differences have to be heritable, determined by the organisms’ genes. Why must traits be heritable

How Does Natural Selection Determine Survival?

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How Does Natural Selection Determine Survival? In natural selection, genetic mutations that are beneficial to an individual’s survival are passed on through reproduction. This results in a new generation of organisms that are more likely to survive to reproduce. Is natural selection all about survival? Evolution is not a random process. The genetic variation on