21. The Immune System
Introduction to Adaptive Immunity
Multiple Choice
Multiple ChoiceWhat major advantage is conveyed by having a system of adaptive immunity?
A
It enables a rapid defense against an antigen that has been previously encountered.
B
It enables an animal to destroy most pathogens almost instantly the first time they are encountered.
C
It results in effector cells with no tolerance to host or self-antigens.
D
It allows for the destruction of antibodies.
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