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3 votes
Which body system is responsible for bringing oxygen into the body?

The digestive system
The respiratory system
The circulatory system
The musculoskeletal system

User Macarthy
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2 Answers

4 votes
I believe it is respiratory.
Digestive deals with food.
Circulatory deals with blood.
The musculoskeletal deals with body form and such.
User Mehdi Charife
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5 votes
the respiratory system
User Steck
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