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Question 6 of 10

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They is a group of organs used for breathing in oxygen and getting rid of
carbon dioxide.
O
A. respiratory system
B. immune system
O
O
c. urinary system
D. endocrine system
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User Harvard
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1 Answer

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A. Respiratory system

Explanation: The respiratory system uses our lungs to carry out the exchanging of gases. We breathe in oxygen and breath out carbon dioxide.
User BoqBoq
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