131k views
5 votes
Which structure or substance is responsible for helping filter and clean air as it passes through the trachea and bronchioles?Question options:A) Nasal passagesB) CiliaC) SalivaD) Alveoli

2 Answers

5 votes

Answer: cilia

Step-by-step explanation:

User Rokuto
by
3.0k points
0 votes

BIOLOGY > HUMAN BIOLOGY > RESPIRATORY SYSTEM

Step-by-step explanation:

Cilia filters the air coming inside lungs by secreting mucus which protects the trachea and bronchioles and where substances sticks on.

ANSWER: B

User Ever Alian
by
3.8k points