character: Dr. Lisa Hearst
topic: Nutrient Cycling in Freshwater Ecosystems
grade: 12
subject: Biology
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character: Dr. Emily Watson
topic: Impact of Nutrients on Freshwater Biodiversity
grade: 12
subject: Biology
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character: Professor Mark Johnson
topic: Role of Decomposers in Aquatic Ecosystems
grade: 12
subject: Biology
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character: Dr. Sarah Lee
topic: Effects of Eutrophication in Freshwater Bodies
grade: 12
subject: Biology
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