Middle School Life Science Quiz
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ECOSYSTEMS: INTERACTIONS, ENERGY, AND DYNAMICS
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Refer to the ecosystem model. Which path correctly traces matter moving between organisms and the environment and supports the idea that matter cycles through ecosystems?
Model: Shrub → Deer; Deer → Mountain lion; dead organisms/waste → Decomposers; decomposers → Soil nutrients; soil nutrients → Shrub; Shrub ↔ Air (matter taken in and released).
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