Question

When an antigen attacks the body, it activates adaptive immunity. This adaptive immunity produces a strong response when it encounters the same antigen for the second time. Which feature of adaptive immunity is essential for this kind of response?

A.the ability to remember the antigen it encounters
B.the ability to distinguish between self and nonself antigens
C.the ability to produce nonspecific antibodies against the foreign antigen
D.the ability to secrete lysozymes against pathogenic antigens
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Answer 1

the ability to remember the antigen it encounters

Step-by-step explanation:



Answer 2

A.the ability to remember the antigen it encounters. Adaptive immunity is an important part of the immune system. It is protection from an infectious disease agent that is mediated by B- and T- lymphocytes following exposure to specific antigen, and characterized by immunological memory.