Which factor listed below most likely results in the loss of genetic variation from small populations by having a random change in allele frequency? a. migration b. mutation c. genetic drift

I believe the answer is: Genetic Drift

The change in allele frequency usually caused by the population that have a certain allele structure somehow unable to survive in the environment. This cause a certain genetic variation to be reduced from the population which make the organisms within it become more similar.

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

hope this .

plz give me brainliest!