character: Prof. Bloodflow
topic: Circulatory Pathways in the Cardiovascular System
grade: 10
subject: Biology
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character: Dr. Pulse
topic: Heart Anatomy and Function
grade: 10
subject: Biology
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character: Ms. Vein
topic: Structure and Function of Blood Vessels
grade: 10
subject: Biology
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character: Mr. Oxygen
topic: Gas Exchange in the Respiratory and Circulatory Systems
grade: 10
subject: Biology
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