character: Dr. Lee
topic: Oxygen Transport in Blood
grade: 10
subject: Biology
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character: Dr. Smith
topic: Hemoglobin Function
grade: 10
subject: Biology
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character: Ms. Johnson
topic: Respiratory System Overview
grade: 10
subject: Biology
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character: Mr. Davis
topic: Circulatory System and Oxygen Delivery
grade: 10
subject: Biology
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