The Fight Against Repeat Pathogen Invasions Is More Efficient with Every

question 28

Multiple Choice

The fight against repeat pathogen invasions is more efficient with every encounter because _________. (Select all that apply)

• A) the specific memory cells undergo another clonal expansion upon pathogen activation making an even larger army
• B) the stem cell-like nature of memory cells performs self-renewal, gradually enlarging the army size between attacks
• C) genomic repositioning within memory cells enhances their ability rapidly produce effector T cells
• D) memory T cells convert to plasma cells

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