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Biology, 21.05.2020 00:17 Barton9720

Which of the following did you include in your
answer? Check all that apply.
weakened pathogen introduced to the body
white blood cells form antibodies against the
pathogen
memory cells remember the pathogen and
attack it if it enters the body again
vaccinations help the body build immunity

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Answers: 2

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weakened pa...
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