Ecology Part 1 Cross Word Puzzle

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Across
  1. 3. Organisms hunt and kill other organisms for food
  2. 5. The ability of an animal to perform a behavior without the need to learn or practice it
  3. 7. A species average population size in a certain habitat
  4. 11. Group of organisms linked in order of the food they eat
  5. 12. A plant
  6. 16. Organisms that eat producers or other organisms
  7. 17. A living organism that shapes the environment
  8. 18. A geographic area in which plants and animals live
  9. 19. Energy that is transferred from one organism to the next
  10. 20. A non-living part of an ecosystem that shapes its environment
Down
  1. 1. An organism that helps define an entire ecosystem
  2. 2. Animals that are killed and eaten by other animals
  3. 4. The area and resources used by a particular species
  4. 6. The amount of energy transferred from one organism to another
  5. 8. Consists of all of the food chains in an ecosystem
  6. 9. Anything that limits a populations size and stops it from growing
  7. 10. The position of an organism in a food chain
  8. 13. When animals are exposed to the same stimuli repeatedly and eventually stops reacting to it
  9. 14. Organisms that aren't originally from an ecosystem and could cause damage
  10. 15. Organisms that break dead organisms down