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1.10 Energy Flow and the 10% Rule

Part of The Living World: Ecosystems in AP® Environmental Science. Read the opening section, then create a free account for the full interactive lesson, practice, and progress tracking.

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The 10% rule approximates that in the transfer of energy from one trophic level to the next, only about 10% of the energy is passed on. The other ~90% is lost.

In this unit

11 lessons

  1. 1.1Introduction to EcosystemsPreview lesson
  2. 1.2Terrestrial BiomesPreview lesson
  3. 1.3Aquatic BiomesPreview lesson
  4. 1.4The Carbon CyclePreview lesson
  5. 1.5The Nitrogen CyclePreview lesson
  6. 1.6The Phosphorus CyclePreview lesson
  7. 1.7The Hydrologic (Water) CyclePreview lesson
  8. 1.8Primary ProductivityPreview lesson
  9. 1.9Trophic LevelsPreview lesson
  10. 1.10Energy Flow and the 10% RuleThis lesson
  11. 1.11Food Chains and Food WebsPreview lesson

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