The waste product of respiration, carbon dioxide (CO 2 ), is transported away from the organs by the blood, in veins, to the right side of the heart, which pumps the blood to the lungs to release the carbon dioxide and pick up more oxygen.
(The waste product of respiration, carbon dioxide; is transported; away from the organs; by the blood) (the heart; pumps; the blood; to the lungs; to release the carbon dioxide and pick up more oxygen)
The waste product of respiration, carbon dioxide the heart
is transported pumps
away from the organs by the blood
the blood to the lungs to release the carbon dioxide and pick up more oxygen