character: Science Teacher
topic: Diffusion and Osmosis
grade: 9
subject: Science
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character: Biologist
topic: Selective Permeability and Its Effects
grade: 9
subject: Science
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character: Environmental Scientist
topic: Nutrient Management in Ecosystems
grade: 9
subject: Science
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character: Waste Management Expert
topic: Role of Osmosis in Waste Removal
grade: 9
subject: Science
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