Which played a major role in altering wind patterns and ocean currents?
volcanic eruptions
ice ages
movement of continents
solar flares

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

Contrast how pollination is different among gymnosperms and angiosperms.

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.