Change over time; a change in the relative frequency of alleles in a population

Explanation:Population genetics is the field of biology that studies allele frequencies in populations and how they change over time.

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

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