Is the process by which ally frequencies change within a gene pool due to change or random events.
a. emigration
b. gene flow
c. genetic drift
d. macroevolution

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.

thinking it would be fimbriae

answer; blending inheritnace;