Which of the following statements is true?

A. Blood glucose levels are controlled by the digestive system.

B. Damage to the kidneys will cause a buildup of waste in the body.

C. Oxygen is dropped off and picked up by blood vessels in the heart.

D. Digestion and breathing is controlled by the cerebrum.

The correct answer is A

I believe the true statement is A. Blood glucose levels are controlled by the digestive system.

The blood gluose level in our body is controlled through the creation of insulin by our Pancreas. This process is a really important part of digestive system because it absorb the glucose from the bloodstream and utilize it to make our body functions properly