B.cell
<span>thats what i wold say cause the cell is the main start of an organism</span>
B.
Genetic drift is the change in the frequency of an existing gene variant in a population due to random sampling of organisms.
if this was in English I would help you but I dont understand
A. Nucleic acids are monomers which are made up of carbon sugar, a phosphate group and a nitrogenous base.
