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5 Written questions

5 Matching questions

  1. Bacteria
  2. Herbivores (primary consumers)
  3. Infiltration
  4. Autotroph (producer)
  5. Symbiosis
  1. a A prokaryotic (single-celled) organism that acts as a decomposer. It gets the nutrients it needs by breaking down dead organisms.
  2. b The slow passage of a liquid through a filtering medium.
  3. c They use the producer organisms to provide them with their food.
  4. d Any organism that produces organic compounds from inorganic compounds, usually through photosynthesis.
  5. e Relationships that exist between individuals of different species, where at least one party benefits from the relationship.

5 Multiple choice questions

  1. They eat the primary consumers as their source of food.
  2. Water that flows over the ground surface rather than soaking into the ground
  3. Removal of dissolved materials from soil by water moving downwards
  4. The process by which two species evolve in response to changes in each other.
  5. The total mass of living matter in a given unit area

5 True/False questions

  1. DenitrificationThe process by which a body of water becomes too rich in dissolved nutrients, leading to plant growth that depletes oxygen.


  2. heterotroph (consumer)Organism that obtains energy from the foods it consumes.


  3. EutrophicationThe conversion of nitrates into nitrogen gas.


  4. EcologyThe total mass of living matter in a given unit area


  5. Natural SelectionA natural process resulting in the evolution of organisms best adapted to the environment.