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MArishka [77]
2 years ago
13

Hello! I need help with this biology problem!

Biology
1 answer:
Alik [6]2 years ago
7 0

Answer:

the first one is the answer from my research

Explanation:

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Option c (No, T cells left from the previous infection can kill any virus.

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When ever viral infection occur, body's immune system start to fight against it by activating B-cells and T-cells.

B-cells produce antibodies that bind with virus and act as label. This label indicate virus as foreign substance. Hence T-cells recognize it and kill it. Furthermore, B-cells form memory cell that keep the viral memory. if this viral infection occur again in future, T-cell recognize it and eliminate the virus.This mechanism is called immunity.

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