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

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

anonymous · Answer

to transport oxygen to all the cells present in the body.

anonymous · Answer

thank you!

abhisar · Answer

The best option is actually the last one..

anonymous · Answer

oh, ok well Its just extra credit and I wasn't sure, thank you both though!

abhisar · Answer

In addition to the transportation of oxygen, circulatory system also helps in excreting waste products, carry co2 to lungs and it also circulates materials like glucose, hormones etc..