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Free_Kalibri [48]
3 years ago
13

EASY 15 POINTS!

Biology
1 answer:
Alex Ar [27]3 years ago
3 0
The human respiratory system is basically the circulation of the body. the lungs which produces air/oxygen that cycles around the body which produces oxygen.
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What is the main function of a nephron?
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Carbon is an organic element found in all life forms. Which of the following occurs through the process of
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3 years ago
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