character: Eastern Diamondback Rattlesnake
topic: Role in Ecosystem
grade: 11
subject: Biology
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character: Predator-Prey Relationships
topic: Ecological Balance
grade: 11
subject: Biology
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character: Keystone Species
topic: Ecosystem Health
grade: 11
subject: Biology
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character: Habitat Conservation
topic: Biodiversity Protection
grade: 11
subject: Biology
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