character: Alex Thompson
topic: Biodiversity in closed ecosystems like aquariums
grade: 10
subject: Biology
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character: Dr. Emily Rivers
topic: Impact of human activity on marine biodiversity
grade: 10
subject: Biology
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character: Carlos Mendoza
topic: Nutrient cycling in aquatic ecosystems
grade: 10
subject: Biology
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character: Sarah Lee
topic: Conservation strategies for aquatic habitats
grade: 10
subject: Biology
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