implies that those genes that predispose traits that increase the odds of an individual surviving long enough to reproduce and nurture descendants will become more abundant in the population.

In a relatively small iguana population the allelic frequency is tracked for three generations. webbing is a recessive allele; no webbing is the dominant allele. during one very rainy spring and summer, a flood washes all the iguana without webbed feet out to sea. by the fall, and three generations later, you have the gene pool seen here.

How does the nervous system affect the excretory system?

Which locations on the map are low-pressure areas? a b c d e