What happens when a population is in hardy-weinberg equilibrium?
o
a. the number of phenotypes increases.
b. the gene pool stays the same.
o
o
c. the allele frequency increases.
d. the alleles are distributed evenly.

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation:

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).