5. How can the heart be compared to a mechanical pump? a. The heart beats normally to deliver blood throughout the body. b. The heart let the blood move towards the lungs for gas exchange. c. The blood vessels carry blood all over the body with the aid of heart. d. The heart is a double pump that pumps on every side, the left and the right, to circulate the blood throughout the body.
Answers & Comments
Answer:
A
Explanation:
The heart beats normally to deliver blood throughout the body