character: NatureNavigator
topic: Energy Transfer in Ecosystems
grade: 9
subject: Biology
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character: EcosystemExplorer
topic: Food Chains and Webs
grade: 9
subject: Biology
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character: BioBraniac
topic: Trophic Levels and Energy Roles
grade: 9
subject: Biology
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character: EcoEducator
topic: Photosynthesis and Cellular Respiration
grade: 9
subject: Biology
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