Their function is to extract oxygen from the atmosphere
![Their Function Is To Extract Oxygen From The Atmosphere class=](https://ph-static.z-dn.net/files/d00/ebf0840078078030df79a4a58ef6ca62.png)
Answer:
Explanation:
The heart, lungs, and circulation extract oxygen from the atmosphere and generate a flow of oxygenated blood to the tissues to maintain aerobic metabolism.