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character: Energy Enthusiast
topic: Calculating Energy Efficiency in Food Chains
grade: 9
subject: Biology
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character: Ecologist Emma
topic: Understanding Energy Flow in Ecosystems
grade: 9
subject: Biology
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character: Food Chain Freddy
topic: Trophic Levels and Energy Transfer
grade: 9
subject: Biology
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character: Sustainability Sam
topic: Impact of Energy Efficiency on Ecosystem Balance
grade: 9
subject: Biology
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