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krok68 [10]
3 years ago
14

What does the respiratory system do?

Biology
2 answers:
maria [59]3 years ago
7 0

 Brings oxygen into the body

VikaD [51]3 years ago
5 0
The respiratory system is the organ system that involves breathing. Humans breathe in oxygen. Another way to find the answer is to break down the word respiration. Respiration means "to breathe" or "the action of breathing". The answer is D.

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