Specific targeting of an antigen is a characteristic of which line of defense?
A) first
B) second
C) third
D) all of these
E) none of these

Question

Quizplus · Accepted Answer

Specific targeting of an antigen is a characteristic of the third line of defense or the adaptive immune response. The first and second lines of defense are non-specific and do not specifically target a particular antigen. Therefore, the correct answer is option C, third.

Specific Targeting of an Antigen Is a Characteristic of Which