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The main function of the respiratory system is to –

A. filter body fluids to remove waste products from the bloodstream.


B. send signals in the form of hormones to the body to control growth, reproduction, and metabolism.


C. rapidly communicate specific information using electrical impulses.


D. exchange gases, mostly carbon dioxide and oxygen, between the body and the atmosphere.

User Centurian
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2 Answers

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The answer is D. Exchange gases, mostly carbon dioxide and oxygen, between the body and atmosphere!
User Samuei
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The answer is d I believe
User Boltthrower
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