OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A secondary immune response will be faster when ____
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The individual has not yet encountered pathogen
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The individual’s macrophages are on high alert
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The individual has already encountered the pathogen and has memory B cells circulating
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The individual has a fever.
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Explanation:
Detailed explanation-1: -Immunological memory is the ability of the immune system to respond more rapidly and effectively to pathogens that have been encountered previously, and reflects the preexistence of a clonally expanded population of antigen-specific lymphocytes.
Detailed explanation-2: -The secondary immune response is one of the most important features of immune systems. During the secondary immune response, the immune system can eliminate the antigen, which has been encountered by the individual during the primary invasion, more rapidly and efficiently.
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