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6 Written questions

5 Multiple choice questions

  1. Organism that breaks down and obtains energy from dead organic matter
  2. Network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem
  3. Diagram that shows the relative amounts of energy or matter within each trophic level in a food chain or food web
  4. Organism that relies on other organisms for its energy and food supply; also called a heterotroph
  5. A series of steps in which organisms transfer energy by eating and being eaten

5 True/False questions

  1. PhotosynthesisProcess by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches


  2. HerbivoreOrganism that obtains energy by eating only plants


  3. BiomassTotal amount of living tissue within a given trophic level


  4. AutotrophOrganism that obtains energy from the foods it consumes; also called a consumer


  5. CarnivoreOrganism that obtains energy by eating animals