A foreign molecule that triggers an adaptive immune response is called a(n)____
a. lymphocyte
b. antibody
c. antigen
d. chemokine
e. pyrogen
ANSWER: c
Biology & Microbiology
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"K" is the elemental symbol for
A. copper. B. potassium. C. krypton. D. nickel. E. phosphorus.
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Which blood vessels contains oxygenated blood?
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a. absorption. b. assimilation. c. secretion. d. digestion. e. elimination.
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