Evolution and natural selection can be witnessed in the human population by examining

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All of the answers describe examples of evolution and natural selection in the human population. Skin-tone variation and sunlight exposure are linked to natural selection in response to different levels of UV radiation in different environments. The sickle-cell trait and malaria show how natural selection can favor individuals with a genetic adaptation that provides a survival advantage in areas where malaria is prevalent. Lactase persistence and cattle farming involve natural selection for individuals with a mutation that allows them to digest lactose in milk, which became advantageous when humans began domesticating cattle. The CF allele and cholera resistance also demonstrate natural selection for individuals with a genetic adaptation that provides a survival advantage in areas where cholera is present.

Evolution and Natural Selection Can Be Witnessed in the Human