malachijwilson5
05.04.2020 •
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
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Ответ:
C
Explanation:
The respiratory system needs to take in oxygen to create energy.
Ответ:
DNA
RNA