character: Dr. Sarah Johnson
topic: Gas Exchange in the Lungs
grade: 10
subject: Biology
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character: Dr. Emily Carter
topic: Respiratory System Functionality
grade: 10
subject: Biology
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character: Mr. Thomas Williams
topic: Oxygen Transport and Hemoglobin
grade: 10
subject: Biology
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character: Ms. Linda Brown
topic: Mechanics of Breathing
grade: 10
subject: Biology
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