What is a major function of the respiratory system?
A) digest food and absorb nutrients into the blood
B) deliver oxygen to the blood and remove carbon dioxide from the body
C) return excess tissue fluid to the cardiovascular system
D) produce vitamin D and retain water

Question

Quizplus · Accepted Answer

The respiratory system's primary function is to deliver oxygen to the blood and remove carbon dioxide from the body.

What Is a Major Function of the Respiratory System