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RUDIKE [14]
3 years ago
12

What are the three key functions your respiratory system is responsible for?

Health
1 answer:
Setler79 [48]3 years ago
8 0

Answer:

Taking in oxygen & expelling carbon dioxide and  working with the circulatory system.

Explanation:

The lungs work with the circulatory system to pump blood cells with oxygen to all cells in the body, the blood then collects waste and carbon dioxide and brings them back to the lungs where they're taken out of the body when we exhale.

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