The Respiratory System

Question

The respiratory system .
A) continuously supplies oxygen to the blood while removing carbon dioxide
B) delivers oxygen, carbon dioxide, nutrients and hormones to cells of the body
C) cleanses the blood of pathogens and debris
D) rids the body of urea, uric acid, and ammonia

Accepted Answer

The respiratory system's primary function is to supply the body with oxygen and remove carbon dioxide. This is achieved through the process of breathing, where oxygen is inhaled into the lungs and carbon dioxide is exhaled. The other options describe functions of different systems: B pertains to the circulatory system, C to the lymphatic system, and D to the excretory system.