character: Dr. Helen Carter
topic: The Role of Antigens in Immune Response
grade: 10
subject: Biology
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character: Professor Mark Liu
topic: Introduction to Immunology and Antigens
grade: 10
subject: Biology
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character: Dr. Sarah Thompson
topic: How Antigens Trigger Immune Responses
grade: 10
subject: Biology
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character: Dr. Robert Smith
topic: Types of Antigens and Their Functions
grade: 10
subject: Biology
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