character: Dr. Emily Roberts
topic: Impact of Heavy Metals on Aquatic Life
grade: 11
subject: Science
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character: Dr. Sarah Anderson
topic: Effects of Pollutants on Marine Ecosystems
grade: 11
subject: Science
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character: Professor Michael Chen
topic: Bioaccumulation of Heavy Metals in Fish
grade: 11
subject: Science
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character: Dr. Lisa Thompson
topic: Toxicology of Heavy Metals in Freshwater Species
grade: 11
subject: Science
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