Multiple Choice
Which of the following is true?
A) Cilia in the lungs are paralyzed by tobacco smoke.
B) Bronchioles in the lungs prevent tobacco smoke from reaching alveoli.
C) Alveoli are the least vulnerable parts of the human respiratory system.
D) Tobacco smoke reaches the trachea after passing through the bronchi.
Correct Answer:

Verified
Correct Answer:
Verified
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