PLEASE HELP ME!! The main functions of this human body system is to -

A. detect odors in the environment
B. exchange gases with the environment
C. chew food as it enters the mouth
D. trap particles that enter the nose
E. trap particles that enter the nose

B.

Explanation:

The human body system drawn in the picture is the respiratory system.

The respiratory system is the system of the human body that enables a human to respire or exchange gases with the environment. The respiratory system includes airways, lungs, trachea, nasal cavities, and pharynx.

The primary organ in the respiratory system is the lungs that assist in the exchange of gases.

Therefore, option B is the correct answer.

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it's not c. i took the quiz and got it wrong. so my best guess is b.

have a great day, and hope this .