ecology

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Across
  1. 3. the regions of the surface, atmosphere.
  2. 8. the study of organisms and their environment
  3. 9. a biological community of interacting organisms
  4. 11. level each of several hierarchical levels in an ecosystem
  5. 13. an individual animal, plant.
  6. 16. an animal that is caught and killed by another for food.
  7. 17. an organism that can produce its own food.
  8. 18. an organism that obtains energy and nutrients
  9. 20. a person who gathers things that have been discarded by others
  10. 23. are organisms whose diet consists of plants.
  11. 24. an organism, typically an animal, that primarily eats meat
Down
  1. 1. chain a hierarchical series of organisms each dependent on the next as a source of food.
  2. 2. an animal that naturally preys on others.
  3. 4. an organism, especially a soil bacterium, fungus
  4. 5. all the inhabitants of a particular town,area.
  5. 6. a group of organisms that obtain their energy.
  6. 7. factors a non-living part of an ecosystem that shapes its environment
  7. 10. a group of people living in the same place
  8. 12. a person who creates economic value, or produces goods
  9. 14. a person who receives or entertains other people as guests
  10. 15. web a visual representation of the interconnected feeding relationships
  11. 19. an organism, typically an animal, that primarily consumes plants
  12. 21. the natural home or environment of an animal,plant.
  13. 22. Association between two different organisms