Which of the Following Is a Major Function of the Respiratory

question 45

Multiple Choice

Which of the following is a major function of the respiratory tract?

• A) warming incoming air before it reaches the lungs
• B) moistening incoming air
• C) filtering out dust and water particles
• D) conducting air with higher O₂ to lungs and conducting air with higher CO₂ back out
• E) All of the answer choices describe functions of the respiratory system.

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