The Best Evidence Supporting the Concept of Immunological Memory Is

question 40

Multiple Choice

The best evidence supporting the concept of immunological memory is:

• A) The increased numbers of antigen receptors expressed by lymphocytes after primary exposure to an antigen
• B) The increased levels of cytokines made by lymphocytes after primary exposure to an antigen
• C) The increased rapidity and magnitude of the secondary response to the same antigen
• D) The increased swelling of lymph nodes during the secondary response to the same antigen
• E) The long lifespan of vertebrates, which would be impossible without immunological memory

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