Colin's Ecology crossword puzzle

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Across
  1. 7. new species in an environment that is harmful and overpopulating
  2. 8. the struggle between organisms for resources in their environment
  3. 9. a visual representation of what animals eat certain animals
  4. 11. differences in genes of a species
  5. 13. the study of an organisms relations to each
  6. 17. any organism that can't make its own food
Down
  1. 1. All of the organisms of a given area and the encompassing physical environment.
  2. 2. an innate, typically fixed pattern of behavior in animals in response to certain stimuli.
  3. 3. the changing of energy from one form to another
  4. 4. the amount of organisms a certain environment can hold, and allow for those organisms to survive
  5. 5. living organism that effects the environment
  6. 6. organism that breaks down dead organic material
  7. 10. the surrounding conditions in which an organism lives
  8. 12. a diagram that shows how energy is transferred through organisms in a ecosystem
  9. 14. non-living factor that effects the environment
  10. 15. anything that delays or decreases the growth of a population
  11. 16. plant that produces its own food by taking in sunlight