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Browse Pennsylvania State Standards
Browse Pennsylvania State Standards
>
Pennsylvania
>
Academic Standards
>
Environment and Ecology - 2002
>
8-10
Areas:
:
4.6. Ecosystems and their Interactions
Standards:
A. Explain the biotic and abiotic components of an ecosystem and their interaction.
B. Explain how cycles affect the balance in an ecosystem.
C. Analyze how ecosystems change over time.
