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17-02-2018
Health

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the cardiovascular system works closesly with the _________ system, which takes up oxygen out of the air and makes it available for our cells to use

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17-02-2018

the answer is respiratory system

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Bryancohen Bryancohen

17-02-2018

Hey there!

The answer is respiratory system. The lungs expand and take in air. The alveoli take in the air. The oxygen is sent to the body, and then is used for energy during a workout.

I hope this helps!

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