What do helper T cells secrete, which activate B cells and stimulate their proliferation?
A) antibodies
B) interleukins
C) allergens
D) antigens
Correct Answer:
Verified
Q45: Which antibodies activate the complement system?
A)IgG and
Q46: How long does it take a typical
Q47: Where in the immune system do dendritic
Q48: Which phrase describes curve E in the
Q49: Which statement best describes the clonal selection
Q51: Which sentence best describes an epitope?
A)It is
Q52: For curve B in the figure, when
Q53: How is active immunity different from passive
Q54: Suppose that a patient's serum is analyzed
Q55: Which phrase describes curve D in the
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