character: Mr. John White
topic: Gas Exchange in the Respiratory System
grade: 10
subject: Biology
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character: Dr. Emily Carter
topic: Mechanisms of Respiration
grade: 10
subject: Biology
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character: Professor Mark Smith
topic: Alveoli Function in Gas Exchange
grade: 10
subject: Biology
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character: Ms. Sarah Johnson
topic: Importance of Oxygen in Cellular Respiration
grade: 10
subject: Biology
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