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OpenStudy (anonymous):
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 will medal and fan
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OpenStudy (anonymous):
What do you think it is
OpenStudy (anonymous):
A?
OpenStudy (anonymous):
i am pretty sure it is D but let me check for you
OpenStudy (anonymous):
okay thanks
OpenStudy (anonymous):
It is D. It also transports waste
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OpenStudy (anonymous):
oh ok thanks
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