Question

What is the main function of the circulatory system in multicellular organisms?

A.
to bring oxygen into the lung


 
B.
to put carbon dioxide into all blood vessels


 
C.
to expel waste products from the body


 
D.
to transport materials throughout the body

Answer 1

D. To transport materials throughout the body

Step-by-step explanation:

Took the quiz and got it right.

Answer 2

I believe the answer would be D to transport materials throughout the body