Which of the following might occur after a helper T cell is presented with a processed antigen and costimulated?
A. Helper T cells lyse.
B. Helper T cells destroy the presenting cell.
C. Helper T cells stop division.
D. Helper T cells release interleukins that stimulate B cells to clone.
E. Helper T cells produce antibodies.
Answer: D
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Which of the following conditions is characterized by high red blood cell counts?
A. Uremia B. Leukemia C. Anemia D. Polycythemia
The mediastinum is part of the
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________ contains widely spaced collagen and elastic fibers, and is the most abundant connective tissue in the body.
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