What is the primary role of the respiratory system in humans? Question 1 options: a. To make carbon dioxide b. To obtain oxygen c. To use up nitrogen d. To find hydrogen

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asked Dec 1, 2020 31.7k views

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What is the primary role of the respiratory system in humans? Question 1 options: a. To make carbon dioxide b. To obtain oxygen c. To use up nitrogen d. To find hydrogen

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Praveen Kishor asked

by Praveen Kishor

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Answer:

Definitely B................. To obtain oxygen

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5 stars plz :)

Yasuhiro answered Dec 5, 2020

by Yasuhiro

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