Ecology Unit Vocabulary

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Across
  1. 2. pyramid of trophic levels of organisms and energy flow
  2. 5. any factor that limits the number of organisms in an environment
  3. 6. organisms that eat only meat
  4. 8. the effect that edges have on habitat fragments
  5. 9. an organism that can make its own food
  6. 12. symbiotic interaction where one organism benefits and one is harmed
  7. 13. the linear flow of energy from one organism to another
  8. 16. the movement of organisms into an area
  9. 17. an organism that must eat another to get food
  10. 21. the fixing of N2 to a form useable by plants (NO2 or NO3)
  11. 22. the conversion of NO3 or NO2 back to N2 in the atmosphere
  12. 26. the area on earth where living things live (from deep ocean to atmosphere)
  13. 27. using up all the resources in an area through overfishing, deforestation, or over-hunting
  14. 28. symbiotic interaction where one organism benefits and the other in uneffected
Down
  1. 1. the study of organisms and their interactions in the environment
  2. 3. the multiple fragments in a habitat causes by human impacts
  3. 4. a group of ecosystems in an area
  4. 7. the excess nutrient runoff that causes a harmful algae bloom
  5. 10. fixing the environment through biological solutions
  6. 11. the variety of life
  7. 14. the movement of organisms out of an area
  8. 15. the maximum number that an environment can support
  9. 18. the amount of animals per unit area
  10. 19. includes the carbon, water, and nitrogen cycles
  11. 20. organisms that eat only plants
  12. 23. aggressive species that are nonnative to an area
  13. 24. symbiotic interaction where both organisms benefit
  14. 25. an organism's role in the environment