How does a hypothesis become a theory?
a. the hypothesis is published in a peer-reviewed journal.
b. the hypothesis is repeatedly supported by many experiments.
c. the hypothesis is proven using a single experiment.
d. the hypothesis is made by a famous scientist.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.