character: Professor John Smith
topic: Mechanisms of Breathing and Gas Exchange
grade: 11
subject: Biology
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character: Dr. Emily Johnson
topic: Respiratory System Anatomy and Function
grade: 11
subject: Biology
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character: Mr. David Brown
topic: Oxygen Transport in the Blood
grade: 11
subject: Biology
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character: Ms. Sarah Lee
topic: The Role of Hemoglobin in Gas Exchange
grade: 11
subject: Biology
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