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Organism forms - PowerPoint PPT Presentation

Energy in Ecosystems

Energy in Ecosystems. Mr. Chapman Biology 20. The Main Source of Energy: The Sun. All organisms must have a source of energy in order to survive . Like machines, bodies are things that need fuel to keep going. The sun is the ultimate source of energy for all organisms on earth.

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Every ecosystem includes both living and nonliving factors.

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Organism forms - PowerPoint PPT Presentation

Energy in Ecosystems

Every ecosystem includes both living and nonliving factors.