Your heart functions in your body as a(n)
A. series of joints responsible for endurance.
B. organ for absorbing vitamins and minerals.
C. filter for impurities.
D. muscle that helps to pump oxygen around the body
Your heart is a pump that helps pump oxygen throughout your body. Your heart replenishes your blood with oxygen so that your cells can function properly. So the correct answer is D. muscle that helps to pump oxygen around the body.
