character: Mr. Hartman
topic: Blood Flow Through the Heart
grade: 10
subject: Biology
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character: Dr. Circulatus
topic: Pathway of Blood in the Human Body
grade: 10
subject: Biology
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character: Professor Vascular
topic: Understanding Blood Circulation
grade: 10
subject: Biology
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character: Ms. Cardia
topic: The Heart's Function and Blood Flow
grade: 10
subject: Biology
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