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###### Define antigen Why are they important fighting infection?macrophage also referred as an antigon-presonting appropriate temExplain why that is ancell is type of white blood cell that has surface receptors that Does an individual recognize antigens cell have the ability recognize more Explain your answer. than one type antigen?Explain the relationship between the antigen-presenting cells and helper cells.Watch the video on slide and answer the following questions. What specifically results from th

Define antigen Why are they important fighting infection? macrophage also referred as an antigon-presonting appropriate tem Explain why that is an cell is type of white blood cell that has surface receptors that Does an individual recognize antigens cell have the ability recognize more Explain your answer. than one type antigen? Explain the relationship between the antigen-presenting cells and helper cells. Watch the video on slide and answer the following questions. What specifically results from the release of cytokines by helper ` cells? What is the problem with helper T cells carrying out this function in HIV infection?

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