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SCSHS Yr 9 Sci - Lines of Defence in the Human Body Flashcards | StudBud
SCSHS Yr 9 Sci - Lines of Defence in the Human Body
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What allowed the antibody count on the graph to increase so quickly after the 2nd infection?
A
more WBCs were present
B
memory B-cells for the antigen existed
C
antibodies were already in the blood
D
memory T-cells with pre-made antibodies existed
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