character: Macrophage Molly
topic: Phagocytosis and Pathogen Elimination
grade: 9
subject: Biology
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character: Phagocyte Philip
topic: Role of Phagocytes in Immune Response
grade: 9
subject: Biology
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character: Bacteria Bob
topic: How Pathogens Invade the Immune System
grade: 9
subject: Biology
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character: Antibody Annie
topic: The Defense Mechanism Against Pathogens
grade: 9
subject: Biology
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