The atria of the heart merely need to allow blood to flow into the ventricle, and therefore aren't very muscular.
The ventricles of the heart need to actually pump blood to the rest of the body, whether to the lungs or the the rest of the body.
It could be over run with the minor consumers and such causing massive problems
True now give me brainliest thx
I take biology 1 just not FLVS. whats Ur question?
