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How Ecosystems Work Unit 3. Use this Powerpoint to guide your research. Address all RED questions/statements in your WIKI. Energy Flow in Ecosystems. Roles of producers and consumers Energy flows from the sun to producers to consumers Food webs Energy pyramid = trophic levels
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How Ecosystems WorkUnit 3 Use this Powerpoint to guide your research. Address all RED questions/statements in your WIKI
Energy Flow in Ecosystems • Roles of producers and consumers • Energy flows from the sun to producers to consumers • Food webs • Energy pyramid = trophic levels • Could there be life on earth without producers?
The Cycling of Materials • Water, Carbon and Nitrogen • Describe the role of producers in the carbon cycle • How are humans altering the carbon cycle?
How Ecosystems Change • Primary and Secondary Succession • Explain the Importance of Pioneer Species - Explain why it may be damaging in the long run to put out some forest fires