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character: Ecosystem Dynamics
topic: Species Interactions and Changes Over Time
grade: 9
subject: Science
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character: Food Webs
topic: Interdependency of Species in Ecosystems
grade: 9
subject: Science
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character: Habitat Alterations
topic: Effects of Invasive Species on Ecosystems
grade: 9
subject: Science
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character: Natural Selection
topic: Adaptations and Their Impact on Ecosystem Stability
grade: 9
subject: Science
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