Explain the track of respiration mentioning organs ( Oxygen coming in & CO2 going out).

The primary organs of the respiratory system are the lungs, which function to take in oxygen and expel carbon dioxide as we breathe. The gas exchange process is performed by the lungs and respiratory system. Air, a mix of oxygen and other gases, is inhaled. ... Once in the lungs, oxygen is moved into the bloodstream

Explanation:

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