Explain the role that specific organisms have in their ecosystem.
Threatened, Endangered and Extinct Species
Explain the significance of diversity in ecosystems.
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Examine and explain how a specialized interaction between two species may affect the survival of both species.
Describe how living organisms affect the survival of one another.
Analyze the relationships among components of an ecosystem.
Examine and explain what happens to an ecosystem as biological diversity changes.
Identify and explain interactions among organisms (e.g., mutually beneficial, harmful relationships).