character: Dr. Emily Chen
topic: The Role of Hemoglobin in Blood
grade: 9
subject: Science
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character: Dr. Sarah Johnson
topic: Functions of Blood Components
grade: 9
subject: Science
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character: Mr. Robert Lee
topic: Oxygen Transport in the Human Body
grade: 9
subject: Science
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character: Ms. Angela White
topic: Understanding Anemia and Hemoglobin Levels
grade: 9
subject: Science
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