20 points!

during a pet scan, a man is told to wiggle his toes. when he does this, a strip of brain tissue becomes brighter on the screen. this strips runs down the side of the brain, about halfway between the front of back.

what does this tell you about the area of the brain used for toe movement?

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