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4 Written questions

4 Multiple choice questions

  1. Free nitrogen can not be used so it has to become fixed. Bacteria perfoms this function.
  2. Eats animals that are already dead.
  3. Driven by the sun. Changes from liquid to gas to liquid again.
  4. Animal that eats prey

3 True/False questions

  1. Secondary SuccessionOccurs after a disturbance in an already existing ecosystem. First species to appear are weeds/grasses.


  2. Hypothesis statementIf...Then statement that is testable.


  3. ParasiteAnimal that gets eaten.