character: David Attenborough
topic: Marine Ecosystems
grade: 10
subject: Biology
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character: Jane Goodall
topic: Conservation of Marine Life
grade: 10
subject: Biology
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character: Sylvia Earle
topic: Ocean Exploration and Preservation
grade: 10
subject: Biology
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character: Carl Safina
topic: Ecology of Oceans and Marine Species
grade: 10
subject: Biology
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