emilybales emilybales

14-12-2018
Physics

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Science Help ASAP please!!! 35 points what is the primary role of the respiratory system in humans.
A)To make carbon dioxide
B)To obtain oxygen
C)To use nitrogen
D)To find hydrogen

Respuesta :

Leen175 Leen175

15-12-2018

B) To obtain oxygen

The respiratory system gets rid of carbon dioxide in exchange for oxygen

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