organisms and their environment

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Across
  1. 1. the mixture of gases surrounding the earth
  2. 5. a living thing as well as its products
  3. 7. a group of organisms that share many features and can interbreed
  4. 12. an organism that feeds on dead plants, dead animals or animal waste
  5. 15. an organism that digests dead food material outside the body
  6. 16. the area of earth that contains major water bodies
  7. 17. all the organisms that live in the same habitat
  8. 18. an animal that eats plants
  9. 20. a group of organisms living in a particular habitat
  10. 21. the external surroundings that surround and affect the survival and development of an organism
  11. 23. a non-living physical and chemical attribute of a system
  12. 25. a living thing that has an organised structure, can react to stimuli, reproduce, adapt and maintain homeostasis
  13. 27. an organism capable of making nutritive organic molecules
  14. 28. the planet organisms live in
  15. 29. fuel formed from organic material
Down
  1. 2. an animal that eats both plants and animals
  2. 3. burning
  3. 4. the community of organisms and their environment in an area that interacts together
  4. 6. transfer of energy from one organism to another by ingestion
  5. 8. an organism that gets its food by eating other organisms
  6. 9. the study of organisms and their environment
  7. 10. the destruction of large areas of forest or woodland
  8. 11. a feeding level in a food chain or food web
  9. 13. the feeding relationships between organisms in the same community
  10. 14. an organism that produce its own food
  11. 16. an organism that does not have the ability to chemically produce its own food
  12. 19. the mass of a living organism
  13. 22. a graph to show the feeding relationships of organisms and the flow of energy through trophi levels in an ecosystem
  14. 24. an animal that eats animals
  15. 26. the portion of earth where living things thrive and live