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3 Written questions

3 Multiple choice questions

  1. process by which plants and some protists use light energy to make food from water and carbon dioxide

  2. organism that relies on other organisms for its energy and food supply; also called a heterotroph

  3. organism that makes its own food using energy from sunlight or chemicals; also called an autotroph

2 True/False questions

  1. food web
    series of steps in an ecosystem in which organisms transfer energy by eating and then being eaten.


  2. food chain
    links all the food chains in an ecosystem; it shows all the feeding relationships between the organisms present