Diffusion aides in the movement of some molecules into and out if cells.
however, diffusion does not play a role in homeostasis.

a. true
b. false

In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48