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Biology, 08.01.2021 02:30 jby

What is the function of the respiratory system? 1. to break down food.
2. to breathe.
3. to transport materials in the body.
4.to rid the body of waste.
please help me out!!

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What is the function of the respiratory system? 1. to break down food.
2. to breathe.
3...
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