A2 Bio intro

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Across
  1. 3. two organisms of different species living in close association and both benefiting.
  2. 6. the study of the interactions between organisms and the environment.
  3. 7. a relationship where two organisms require the same thing.
  4. 8. an organism that breaks down the organic remains of other organisms.
  5. 12. factors that involve living organisms.
  6. 13. organic matter or dead organisms and waste material such as dead leaves and faeces.
  7. 14. an organism that uses light energy when making an organic molecule.
Down
  1. 1. two species living in close association where one does the other harm.
  2. 2. an organism that obtains its energy from other organic compounds.
  3. 4. factors that involve the non living components of the environment.
  4. 5. a self contained system of living organisms and the environment.
  5. 7. an abiotic factor that affects photosynthetic plants.
  6. 9. factors relation to the soil.
  7. 10. an abiotic factor that affects any organism that respires aerobically.
  8. 11. a relationship where one organism kills and eats the other one.