character: Dr. Elinor Ostrom
topic: Microbial Ecosystems in the Gut
grade: 11
subject: Biology
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character: Dr. Robert Paine
topic: Keystone Species in Ecosystems
grade: 11
subject: Biology
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character: Dr. David Tilman
topic: Biodiversity and Ecosystem Functioning
grade: 11
subject: Biology
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character: Dr. Nina V. Fedoroff
topic: Genetic Diversity in Microbial Communities
grade: 11
subject: Biology
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