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Which of the following statements describes an example of innate immunity?
A. An allergic reaction to insect venom
B. The classical pathway of complement
C. The destruction of virus-infected cells by T-killer cells
D. The production of IgG in response to insect venom
E. Phagocytosis of microbes by neutrophils and macrophages
Answer is E, but I'm not sure why B can't be an answer. I thought the complement system is a part of innate immunity?
A. An allergic reaction to insect venom
B. The classical pathway of complement
C. The destruction of virus-infected cells by T-killer cells
D. The production of IgG in response to insect venom
E. Phagocytosis of microbes by neutrophils and macrophages
Answer is E, but I'm not sure why B can't be an answer. I thought the complement system is a part of innate immunity?
