Which of the following is not a mechanical barrier against microorganisms?
A)Saliva
B)Urine
C)Tears
D)Diarrhea

Question

Quizplus · Accepted Answer

Saliva, urine, and tears all have mechanical properties that function as barriers against microorganisms. For example, saliva can wash away bacteria and viruses from the mouth and tears can flush out foreign particles from the eye. Diarrhea, on the other hand, is a symptom of gastrointestinal distress and is not a mechanical barrier against microorganisms.

Which of the Following Is Not a Mechanical Barrier Against