Add all of the events to get
The right answer for the question that is being asked and shown above is that: "Secondary Succession" Assuming this land was once a farmer’s field with previously established vegetation, the process that does this photograph best represent is secondary succession.
Answer:
Option c (No, T cells left from the previous infection can kill any virus.
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Explanation:
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.