Topics: Defence against Infectious Diseases Quiz
a small fragment of red blood cells found in the blood plasma that functions to promote blood clotting.
A. Platelet
B. Thrombin
C. Thrombus
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a long-lived cell of the immune system that has previously encountered a specific antigen and that upon re-exposure produces large amounts of antibody.
A. Memory cell
B. Metabolism
C. Mucous membranes