character: Ms. Artery
topic: Structure and Function of Blood Vessels
grade: 11
subject: Biology
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character: Mr. Vein
topic: Role of Veins in Circulation
grade: 11
subject: Biology
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character: Dr. Capillary
topic: Capillary Exchange and Tissue Perfusion
grade: 11
subject: Biology
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character: Professor Heart
topic: The Cardiovascular System and Blood Flow
grade: 11
subject: Biology
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