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Interactions within Ecosystems · Semester 2

Energy Flow and Ecological Pyramids

Understanding the transfer of energy through trophic levels and the concept of ecological pyramids.

Key Questions

  1. Explain why there is always less energy available at higher trophic levels in an ecosystem.
  2. Construct an energy pyramid to represent energy transfer in a food chain.
  3. Analyze the implications of the 10% rule for the biomass of different trophic levels.

MOE Syllabus Outcomes

MOE: Energy Flow in Ecosystems - S2
Level: Secondary 2
Subject: Science
Unit: Interactions within Ecosystems
Period: Semester 2

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