character: Dr. W. Ford Doolittle
topic: Endosymbiotic Theory
grade: 9
subject: Science
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character: Lynn Margulis
topic: Contributions to Endosymbiotic Theory
grade: 9
subject: Science
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character: Charles Darwin
topic: Evolution and Natural Selection
grade: 9
subject: Science
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character: Carl Woese
topic: Molecular Phylogenetics and Bacteria
grade: 9
subject: Science
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