Question

What is a collection of organs whose primary function is to take in oxygen

and expel carbon dioxide?

•cardiovascular system

•skeletal system

•muscular system

•respiratory system

Answer 1

D; respiratory system

Step-by-step explanation:

a collection of organs whose primary function is to take in oxygen and expel carbon dioxide; the organs of this system include the lungs, the throat, and the passageways that lead to the lungs.