Global air circulation cells move air
choose all that apply
from low pressure to high pressure
clockwise in the northern hemisphere and counterclockwise in the southern hemisphere
from the equator to the poles
in different directions at different latitudes
randomly

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

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.

What are the pros and cons of transect sampling?