Question

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

Answer 1

Answer: cilia

Step-by-step explanation:

Answer 2

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