For a gene with two alternative alleles, a (frequency p) and a (frequency q), the term in the algebraic form of the hardy-weinberg equilibrium for the heterozygote

genotype frequency .
a. p^2.
b. q^2.
c. 2pq.
d. (p+q)^2.
e. 2aa.

What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water