Organisms and their environment

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Across
  1. 2. Organisms that live in a community and interact with each other and its environment.
  2. 5. Organisms that feed on secondary consumers.
  3. 6. When the relative size of different populations remains constant.
  4. 12. Position of an organism in a food web, food chain or ecological pyramid.
  5. 13. An organism that makes its own food.
  6. 16. Organisms that feed on primary consumers.
  7. 17. Allows a person to compare the number of organisms present in each trophic level at a particular time.
  8. 20. Allows a person to compare the total energy in each trophic level of a food chain over a certain period of time.
  9. 21. Organisms of the same species living together in a common habitat.
  10. 22. Allows a person to compare the mass of organisms present in each trophic level at a particular time.
Down
  1. 1. A network of interconnected food chains.
  2. 3. cycle Processes where carbon, in the form of carbon dioxide, is removed from and released into the environment.
  3. 4. Study of organisms continually interacting with each other and their surroundings.
  4. 7. Organisms that feed on tertiary consumers.
  5. 8. Organisms that are herbivores.
  6. 9. A horizontal bar diagram that shows the relationship between food and energy.
  7. 10. Processes where nitrogen is constantly removed from the soil and is eventually returned to it in the form of nitrates.
  8. 11. Organisms that cannot make their own food.
  9. 14. Different populations of different species in a habitat living and interacting with one another.
  10. 15. Organisms that get their energy by breaking down dead organisms.
  11. 18. The place where an organism resides.
  12. 19. Energy and nutrients being transferred through a series of organisms. (Starts with producer)