character: Mr. David Blue
topic: Toxic Effects of Metals on Fish Species
grade: 9
subject: Biology
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character: Dr. Sarah Green
topic: Impact of Heavy Metals on Aquatic Ecosystems
grade: 9
subject: Biology
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character: Ms. Jennifer White
topic: Aquatic Toxicology: Effects of Contaminants on Fish
grade: 9
subject: Biology
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character: Mr. Alex Red
topic: Bioaccumulation of Metals in Marine Life
grade: 9
subject: Biology
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