Adult female monkeys from one population breed with male monkeys of a nearby population. the introduction of new alleles into the first population’s gene pool is an example of natural selection. genetic drift. mutation. gene flow.

Your answer is "gene flow"

Hope this helps!

-Payshence

your answer is rna to the question.

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.