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Why is the respiratory system so important? A) it controls breathing and gas exchange in the body. B) it controls heartbeat and blood circulation C) it controls digestion and absorption of nutrients D)it
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Why is the respiratory system so important?

A) it controls breathing and gas exchange in the body.

B) it controls heartbeat and blood circulation

C) it controls digestion and absorption of nutrients

D)it controls internal body temperature

User Florent DUGUET
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4 votes

Answer:A)

Step-by-step explanation:

User Dostu
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