The third line of defense involves the adaptive response mediated by ________.
A) lymphocytes
B) antigens
C) mucous membranes
D) pathogens

Question

Quizplus · Accepted Answer

The adaptive response is mediated by lymphocytes, which can recognize and respond specifically to antigens. Mucous membranes and pathogens are part of the earlier lines of defense (barriers and innate immune system, respectively).

The Third Line of Defense Involves the Adaptive Response Mediated