Biology

The correct answer is: D.It can introduce new alleles into a population or remove existing alleles, leading to changes in allele frequencies.

Explanation:

Migration (or gene flow) refers to the movement of individuals or their genetic material from one population to another. When individuals migrate, they bring new alleles into the population or take some alleles out, which can change the allele frequencies. This process can introduce genetic diversity or homogenize genetic differences between populations.

The other options are incorrect because:

A.It only inc...