Seudónimo Seudónimo

28-10-2016
Physics

contestada

What is the primary role of the respiratory system in living organisms?

A.to make carbon dioxide

B.to obtain oxygen

C.to use up nitrogen

D.to find hydrogen

Respuesta :

lisarinicker59 lisarinicker59

28-10-2016

i think its b but not sure

Answer Link

sdelight422 sdelight422

19-10-2021

Answer:

To obtain oxygen.

Answer Link

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