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Which is the main function of the respiratory system? a. To protect the body from illness. b. To push blood to all parts of the body c. To protect the internal organs d. To help oxygen get into blood vessels
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Which is the main function of the respiratory system?

a. To protect the body from illness.
b. To push blood to all parts of the body
c. To protect the internal organs
d. To help oxygen get into blood vessels

User Conduit
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1 Answer

8 votes
D. To help oxygen get into blood vessels



User Alex Konkin
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3.6k points
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