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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

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
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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

asked
User KaraokeStu
by
8.0k points

2 Answers

1 vote

Answer:

To obtain oxygen.

answered
User Selle
by
8.5k points
6 votes
i think its b but not sure
answered
User Fahim Babar Patel
by
7.4k points
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