Final answer:
The respiratory system functions involve gas exchange and regulation of pH.
Explanation:
Two functions of the respiratory system:
- Gas Exchange: The respiratory system facilitates the exchange of oxygen and carbon dioxide between the air and blood in the lungs.
- Regulation of pH: It helps in maintaining the acid-base balance in the body by regulating the levels of carbon dioxide and oxygen.
Learn more about Respiratory system functions here:
https://brainly.com/question/28319009
