Answer: allele frequencies do not change unless they are influenced by factors that cause evolution.
Explanation:
According to the Hardy-Weinberg studies of population genetics, the evolution occurs only when there is an alteration of some conditions such as mutation, migration, natural selection, a large populatuon or random mating. Taking this into consideration it can be said that allele frequencies change only if they are influenced by the previously mentioned factors.
"<span>C. He believed strongly in the Union and the power of compromise in balancing rights" is the best answer. Calhoun was a fan of strong national government early on, but then switched to favoring states' rights. </span>