character: Ms. Sarah Lee
topic: How Extinct Species Inform Our Knowledge of Ecosystem Dynamics
grade: 12
subject: Biology
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character: Dr. Emily Carter
topic: The Role of Keystone Species in Ecosystem Stability
grade: 12
subject: Biology
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character: Mr. John Smith
topic: The Impact of Biodiversity Loss on Ecosystem Functioning
grade: 12
subject: Biology
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character: Professor Alan Chang
topic: Paleobiology: Lessons from the Past for Future Conservation
grade: 12
subject: Biology
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