character: Dr. Maria Lopez
topic: The Basics of the Immune System
grade: 10
subject: Biology
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character: Dr. John Smith
topic: Understanding Antibodies
grade: 10
subject: Biology
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character: Ms. Ellen White
topic: The Role of White Blood Cells
grade: 10
subject: Biology
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character: Mr. David Green
topic: Vaccination and Immunity
grade: 10
subject: Biology
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