Question

What structures below trap and remove pathogens that could enter the respiratory system?
A.mucus
B.cilia
C.neither of these
D.both of these

Answer 1

Answer:

I'm pretty sure it's A) Mucus

Explanation:

Mucus traps and removes pathogens while the cilia  are goblet cells that secrete mucus which helps protect the lining of the bronchus and trap microorganisms, not pathogens