Which of the following is not a function of the circulatory system?

A. Breaks down large molecules

B. Delivers oxygen to body cells

C. Takes carbon dioxide away from body cells

D. Fights infection

Breaks down large molecules

Answer;

A. Breaks down large molecules

Explanation;

Circulatory system is a transport systems of the human body that is composed of the heart, the blood and the blood vessels. Its functions include:

carries food and oxygen to the different cells of the body; carries body wastes away; protects the body from diseases; and serves as the body's defense system.