What is the main function of the Respiratory System?
A. Pumping blood bringing oxygen to the cells throughout your body
B. Supporting your muscles and protecting vital organs
C. Taking in oxygen for the body and expelling carbon dioxide
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Home » Biology » What is the main function of the Respiratory System? A. Pumping blood bringing oxygen to the cells throughout your body B. Supporting your muscles and protecting vital organs C. Taking in oxygen for the body and expelling carbon dioxide