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1.11 Food Chains and Food Webs

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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A food chain is a single linear path showing how energy moves from one organism to the next (e.g., grass → grasshopper → mouse → hawk). A food web is a model of an interlocking pattern of food chains that depicts the flow of energy and nutrients in two or more food chains.

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% RulePreview lesson
  11. 1.11Food Chains and Food WebsThis lesson

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