A secondary response to an invading microorganism that has invaded a previous time is
A) launched by memory cells
B) slower and weaker than the primary response
C) more rapid, more potent, and longer-lasting than the primary response
D) launched by memory cells and slower and weaker than the primary response
E) launched by memory cells and more rapid, more potent, and longer-lasting than the primary response
Correct Answer:
Verified
Q42: Which of the following is not secreted
Q42: Lymphocytes respond only to antigens that have
Q46: The antigen-binding fragments (Fab) of antibodies are
A)
Q46: _ T cells release perforin.
A)Cytotoxic
B)Helper
C)Suppressor
D)Regulatory
E)Inhibitory
Q48: Dendritic cells
A) are neurons
B) participate in the
Q49: Chemicals other than antibodies secreted by lymphocytes
Q50: Which statement is incorrect?
A) Cytotoxic T cells
Q54: Active immunity
A)is self-generated upon exposure to antigen
B)can
Q57: Which statement does not apply to macrophages?
A)They
Q60: A large, complex molecule that triggers a
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