character: Cellular Defender
topic: Understanding White Blood Cells and Their Roles
grade: 9
subject: Science
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character: Immune System Hero
topic: Functions of Different Types of White Blood Cells
grade: 9
subject: Science
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character: Antibody Agent
topic: How White Blood Cells Target Pathogens
grade: 9
subject: Science
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character: Cellular Communicator
topic: The Role of Signaling in Immune Response
grade: 9
subject: Science
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