Microorganisms removed from incoming air by the sticky mucus of the respiratory tract are most likely destroyed by
A) toxins in the mucus.
B) the cilia.
C) gastric juice.
D) a lack of nutrients.
E) all of the above

Question

Quizplus · Accepted Answer

The microorganisms trapped in the mucus are often moved to the throat by cilia and then swallowed, where they are destroyed by the acidic gastric juice in the stomach.

Microorganisms Removed from Incoming Air by the Sticky Mucus of the Respiratory