character: Mr. Johnson
topic: Active Transport in Cells
grade: 9
subject: Biology
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character: Ms. Thompson
topic: Cell Membrane Transport Mechanisms
grade: 9
subject: Biology
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character: Dr. Smith
topic: Types of Transport in Biological Systems
grade: 9
subject: Biology
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character: Mrs. Lee
topic: Diffusion vs. Active Transport
grade: 9
subject: Biology
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