Genetic drift refers to changes in the gene pool of a population that result
from
O
A. injuries caused by male competition
O
B. changes in the number of polygenic traits
O
c. a type of artificial selection
D. random changes in allele frequencies

D. random changes in allele frequencies

Explanation:

Founder's effect and bottleneck effect are examples of genetic drift.

answer; /// i believe the correct answer is (thrombocytopenia); (a)

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.