Question

a student drew a picture of a human body system shown below. the student labeled some of the organs of the system. the main function of this human body system is to... a. trap particles that enter the nose. b. exchange gases with the environment. c. chew food as it enters the mouth. d. sense odors in the environment.

Explanation:

The picture shows the human respiratory system. Its primary function is gas - exchange, taking in oxygen and releasing carbon dioxide. Trapping particles in the nose (A) is a minor function of the nasal cavity, chewing food (C) is related to the digestive system, and sensing odors (D) is a function of the olfactory system.

Answer:

B. Exchange gases with the environment