Organisms and Their Environment

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Across
  1. 2. Is the populations of predators and prey.
  2. 4. organisms that get their energy by breaking down dead organisms.
  3. 5. The various processes by which carbon, in the form of carbon dioxide, is removed from and released into the environment.
  4. 8. are organisms that are not bale to make their own food.
  5. 15. Is a community of organisms interacting with one another and with its non-living environment.
  6. 17. The process by which nitrogen is constantly removed from the soil and is eventually returned to it in the form of nitrates.
  7. 20. It consists of a network of interconnected food chains.
  8. 21. Is the position of an organism in a food chain.
  9. 22. Is the process which ammonium compounds are converted to nitrates.
  10. 23. It allows us to compare the mass of organisms present in each trophic level.
  11. 25. Process by which biological fuels are oxidized in the presence of an inorganic substance.
Down
  1. 1. Horizontal bar diagrams showing the relationship of food and energy.
  2. 3. Is the process by which the complex organic substances breakdown into simpler substances by the action of microorganisms.
  3. 6. Process where a substance in the presence of oxygen, giving off heat and light in the process.
  4. 7. Is a group of organisms of the same species that live together in a habitat.
  5. 9. Is the place where organisms live.
  6. 10. Is a organisms that makes its own organic food substances.
  7. 11. It allows us to compare the total energy in each trophic level of a food chain.
  8. 12. A process in living organisms involving the production of energy.
  9. 13. All populations of different species living and interacting with one another in a habitat.
  10. 14. Is the study of interactions when organisms continually interact with one another.
  11. 16. When different populations of plants and animals live together and interact within the same environment
  12. 18. The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
  13. 19. It allows us to compare the number of organisms present in each trophic level.
  14. 24. Is a series of organisms through which energy and nutrients are transferred.