Pumping blood in and out of the heart.
<span>A grassland is a biome having predominantly grasses, and some woody shrubs, instead of trees and forests. So, Yes they do.</span>
Its gonna be false because u cant not do it
<span>The blood pressure measured in the calf is lower than it is in the arm. Blood pressure in the body is highest right at the ascending arch of the aorta. From that point, the pressure decreases as blood moves "distally" from the heart. Purely mechanically, legs are farther away from the heart than are the arms, thus pressure is less.</span>
