The adaptation that freed vertebrates from water for reproduction and allowed them to radiate into diverse terrestrial environments was the .

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

Anne, an intern in a microbiology lab, was observing the characteristics of various specimens of protists. match each specimen to the category of protist to which it belongs.