Sexual selection leads to brighter male plumage in a species of duck. Choose. The evolution of the land plants as a major terrestrial group Choose. A branch of the Archaea gives rise to the domain Eukaryota Choose. Speciation of new world monkeys in South America Choose. Genetic drift results in a deleterious allele being fixed in a population of black-footed ferrets Choose..

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Q: common ancestor

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Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.