character: Ms. Sarah Johnson
topic: Gas Exchange Processes in the Lungs
grade: 11
subject: Biology
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character: Dr. Emily Carter
topic: Respiratory System Functions
grade: 11
subject: Biology
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character: Mr. David Lee
topic: Oxygen and Carbon Dioxide Transport
grade: 11
subject: Biology
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character: Ms. Laura Smith
topic: Alveoli and Their Role in Gas Exchange
grade: 11
subject: Biology
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