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4 Written questions

4 Multiple choice questions

  1. Occurs after a disturbance in an already existing ecosystem. First species to appear are weeds/grasses.
  2. Animal that eats prey
  3. Eats animals that are already dead.
  4. Occurs where no previous ecosystem existed. First species to appear are lichens and mosses.

3 True/False questions

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


  2. Origin of LifeDriven by the sun. Changes from liquid to gas to liquid again.


  3. Nitrogen FixationFree nitrogen can not be used so it has to become fixed. Bacteria perfoms this function.