What three key observations allowed darwin to deduce that natural selection is a primary driver of evolution?
Populations of organisms vary, more offspring are produced than can survive, and the relative frequency of favourable mutations rises with time.
Natural selection is the variation in individual survival and procreation brought on by phenotypic variances. The evolution of a population's heritable features across generations is a fundamental mechanism of evolution. By contrasting it with artificial selection, which in his opinion is intentional and natural selection is not, Charles Darwin popularized the phrase "natural ."
Every population of organisms contains variation. This happens in part because an organism's genome might experience random mutations, which its descendants may inherit. Individuals' genetics and environments interact throughout their lifetimes to produce different phenotypes.
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