Which of the statements accurately describes the role of your heart in delivering oxygen to your body cells?
AThe heart pumps oxygen through the alveoli, which deliver it to body cells.
BThe heart pumps oxygen-rich blood to your body cells.
CThe heart takes in oxygen from the environment and delivers it to cells.
DThe heart breaks down carbon dioxide into carbon and oxygen.
AThe heart pumps oxygen through the alveoli, which deliver it to body cells.
BThe heart pumps oxygen-rich blood to your body cells.
CThe heart takes in oxygen from the environment and delivers it to cells.
DThe heart breaks down carbon dioxide into carbon and oxygen.