Select your answer:
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The Human Eye › View This shape is
A. Convex
B. Concave
Adaptive Immune System › View
Which of the following statements is true?
A. Plasma cells produce antibodies that can exist in the blood system for between 10 and 20 years
B. Memory cells last a long period of time, plasma cells a significantly shorter period
C. Memory cells need to be replaced every 6 months via immune system stimulation
D. Mutatnt Cytotoxic T Cells are responsible for the formation of cancers