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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. Survives by stealing energy off another animal
  3. Occurs after a disturbance in an already existing ecosystem. First species to appear are weeds/grasses.
  4. Animal that gets eaten.

3 True/False questions

  1. ScavengerEats animals that are already dead.

          

  2. Food WebAnimal that eats prey

          

  3. Origin of LifeFirst life was unicellular, did not need oxygen, were consumers, and lived in oceans. Formed by chemical units.