Question

The main function of the kidneys is to:

a. remove toxins from urine.
b. remove everyday wastes and water from the body
c. remove carbon dioxide from the blood and excrete it in urine.
d. store extra glycogen for use in emergencies by the body
e. retrieve vital nutrients from urine and send them back to the liver for processing.

Answer 1

It is B. to remove everyday wastes and water from body. It wouldn't be E because the kidneys create urine. They wouldn't take the nutrients back.

Answer 2

E. Remove toxins from urine.