Multiple Choice
Helper T cells are activated
A) by cytokines.
B) by macrophages and CD4.
C) through costimulation.
D) by antigens bound to the major histocompatibility complexes (MHCs) .
E) All of these are correct.
Correct Answer:

Verified
Correct Answer:
Verified
Q69: In addition to leaving the blood in
Q70: As we age,the thymus:<br>A)begins producing red blood
Q71: The spleen<br>A)filters blood instead of lymph.<br>B)contains macrophages
Q72: In addition to symptoms of local inflammation,systemic
Q73: Which of the following is FALSE?<br>A)Cell mediated
Q75: Antiserum administered for snakebite or spider bite
Q76: Which of the following is NOT a
Q77: Which of these processes assist in the
Q78: Protease inhibitors are drugs that interfere with<br>A)formation
Q79: Cytotoxic T cells<br>A)divide to produce more cytotoxic