character: Dr. Smith
topic: Function and Structure of the Circulatory System
grade: 10
subject: Biology
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character: Dr. Johnson
topic: Overview of Human Circulation
grade: 10
subject: Biology
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character: Ms. Lee
topic: Components of the Cardiovascular System
grade: 10
subject: Biology
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character: Mr. Brown
topic: The Role of Blood in Circulatory Function
grade: 10
subject: Biology
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