Organisms !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
True
Explanation:
The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart. Veins carry the blood back to the heart.
I wanna say the answer is A I don't really think the other choices would be considered "strengthening activities "
Smooth muscles are involuntary. so it would be A for a fact.