Question

What is the main function of the circulatory system?

A.
to remove excess waste materials from the body

B.
to coordinate the actions of the body

C.
to distribute blood throughout the body

D.
to secrete hormones in different areas of the body

Answer 1

C. to distribute blood throughout the body

Explanation: The circulatory system (heart, blood, and blood vessels) transports blood, which carries oxygen, nutrients, hormones, and waste products to and from body cells.