Science- ecology

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Across
  1. 2. close relationship between two different species
  2. 6. non living
  3. 9. organism that breaks down dead plants and animals
  4. 13. number of people in a given area
  5. 14. organism that eats only plants
  6. 15. role of an organism within its environment
  7. 16. relationship in which one species benefits and the other is unaffected
  8. 18. tireless area with long cold winters and cool summers
  9. 20. the environment in which we live
  10. 22. study of the interaction of the environment in which they live
Down
  1. 1. area of earth containing life
  2. 3. plants in an ecosystem
  3. 4. organism which obtain energy eating other organisms
  4. 5. living
  5. 7. relationship in which both species benefit
  6. 8. 2 species compete for scare resources
  7. 10. organism that eats dead plants or animals
  8. 11. organism which produces its own food
  9. 12. chemical reaction in which water & carbon D are changed using sunlight
  10. 16. population living together in a given area
  11. 17. animals in an ecosystem
  12. 19. cycle process through which water is recycycled
  13. 21. chain diagram showing the interconnection of the food chain in a ecosystem