Answered

What is the primary function of the respiratory system?

A. Facilitating breathing
B. Transporting oxygen to body tissues
C. Pumping blood throughout the body
D. Fighting off infections

How does the respiratory system facilitate breathing?



Answer :

GinnyAnswer

Final answer:

The respiratory system delivers oxygen to body tissues and removes carbon dioxide.


Explanation:

The primary function of the respiratory system is to deliver oxygen to the cells of the body's tissues and remove carbon dioxide.

The main structures of the human respiratory system include the nasal cavity, the trachea, and the lungs.

All aerobic organisms require oxygen to carry out their metabolic functions.


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