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4 votes
Select one:

a. The cold virus mutates so often that your memory cells do not recognize it
b. Memory cells are specific for certain pathogens

User Sababoni
by
3.0k points

2 Answers

2 votes

Answer:

B

Also why is this not talking about coronavirus???

User Livia Moroianu
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3.5k points
6 votes
B because memory cells are pathogens
User Natxo
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