wrote short note on evolution
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Evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological populationsevolve through genetic changes that correspond to changes in the organisms' observable traits. Genetic changes include mutations, which are caused by damage or replication errors in organisms' DNA. As the genetic variation of a population driftsrandomly over generations, natural selectiongradually leads traits to become more or less common based on the relative reproductive success of organisms with those traits.
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