character: Ms. Davis
topic: Biomagnification in Trophic Levels
grade: 11
subject: Science
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character: Mr. Thompson
topic: Food Chains and Webs in Ecosystems
grade: 11
subject: Science
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character: Dr. Smith
topic: Environmental Impacts of Pollutants
grade: 11
subject: Science
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character: Ms. Johnson
topic: Ecological Interactions and Energy Flow
grade: 11
subject: Science
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