The Earth and Ecosystems

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Across
  1. 9. the process in which the sun's energy is converted into chemical energy
  2. 11. the zone around earth where life can exist
  3. 14. _______________ energy, is a form of energy transferred during heating or cooling
  4. 16. the _________ hypothesis: a theory that the earth behaves like an organism
  5. 18. all the living organisms and their environment
  6. 20. _________________ respiration is the process by which sugar and oxygen are converted into carbon dioxide and water
  7. 22. _______ require a continuous supply of energy to stay alive
  8. 23. _______________ energy, is energy that travels through empty space
  9. 24. the ability to maintain an ecological balance
  10. 26. all individuals of a single species in a particular area make a ________________
  11. 27. _______________ depend on photosynthesizing organisms for food and oxygen
  12. 28. in __________ ecosystems, the main producers are microscopic organisms
Down
  1. 1. all of the earth's water in solid, liquid and gas form
  2. 2. ________phere; means stone; the earth's solid outer layer
  3. 3. example of an ecosystem found in Ontario
  4. 4. non-living physical and chemical components of of an ecosystem
  5. 5. example of an ecosystem found in a park
  6. 6. like all _________, humans can be influenced by biotic and abiotic factors
  7. 7. ____________ energy, is a visible form of radiant energy
  8. 8. all the individuals of all the various populations form a _______________
  9. 10. individual ____________ form many species that share an ecosystem
  10. 11. the community of _____________ and fungi living in a rotting log is an ecosystem
  11. 12. an organism that makes its own energy-rich food compounds using the sun's energy
  12. 13. an organism that obtains its energy from consuming other organisms
  13. 15. ________phere; means vapour; the layer of gases surrounding earth
  14. 17. ________________ ecosystems are generally sustainable
  15. 18. during photosynthesis, green plants use the sun's ____________ to convert C02 and water into sugar and oxygen
  16. 19. a ___________________ ecosystem is maintained through natural processes
  17. 21. ________________ created ecosystems must usually be managed
  18. 25. living things, their remains, and features (i.e. nests)