Helper T cells respond only to epitopes attached to MHC proteins.
Correct Answer:
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Q14: Mucous membranes prevent most pathogens from entering
Q15: Naive T cells can synthesize antibodies.
Q16: Lymph is similar to blood plasma,but very
Q17: Lymph originates in blood capillaries that pick
Q18: Most Memory B cells are found circulating
Q20: Cytotoxic T cells respond only to antigens
Q21: Immune surveillance is a process in which
Q22: _ are found especially in the mucous
Q23: Complement fixation cannot lead to _.
A) enhanced
Q24: When an enemy cell is present,a(n)_ secretes
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