how ecosystems work unit 3
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
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