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T cells and B cells can be activated only by
Q10: The muscular layer in the wall of
Q25: When an antibody binds to its specific
Q38: The two vertebral arteries fuse to form
Q58: The cardioacceleratory center activates sympathetic neurons and
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Q139: What structure do RBCs move through single-file?<br>A)artery<br>B)arteriole<br>C)capillary<br>D)venule<br>E)vein
Q142: Hormones of the immune system include all
Q159: The _ receives blood from the superior
Q184: Blood flow to a tissue will increase