character: Ms. Johnson
topic: Gas Exchange in the Lungs
grade: 11
subject: Biology
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character: Mr. Smith
topic: Respiratory System Anatomy
grade: 11
subject: Biology
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character: Dr. Lee
topic: Oxygen Transport in Blood
grade: 11
subject: Biology
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character: Ms. Thompson
topic: Diffusion Mechanisms in Biology
grade: 11
subject: Biology
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