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Need help on number 11

asked Apr 11, 2017

Mathematics
middle-school

2 answers

4 votes

147k views

What is the circulatory system's function? :) A. It removes cellular waste from the blood and converts it to urine. B. It exchanges carbon dioxide and oxygen in the lungs. C. It transports oxygen and

asked Mar 2, 2017

Biology
middle-school

1 answer

0 votes

15.0k views

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