All of the following represent physical and/or chemical barriers that form the body's first line of defense against pathogens EXCEPT which one?
A) tears
B) resident bacteria
C) skin surface
D) earwax
E) antibodies

Question

Quizplus · Accepted Answer

Antibodies are part of the adaptive immune system, not the first line of defense, which includes physical and chemical barriers like tears, skin, and earwax.

All of the Following Represent Physical And/or Chemical Barriers That