Principles of Ecology

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Across
  1. 2. the portion of the earth that supports life
  2. 3. one organism, consuming another organism for food
  3. 6. factors the living factor in an organisms environment
  4. 7. the cat is the predator, and the _______ is the prey
  5. 10. a biological community, and all the abiotic factors that affect it
  6. 12. a relationship in which two organisms live together in close association
  7. 13. is the role an organism has in its environment
  8. 14. a relationship between two species that live together and benefit from each other
  9. 16. individual organisms of the same species living in the same geographic location
  10. 17. the nonliving factor in an organisms environment
  11. 19. scientist, who study ecology
  12. 20. introduced the word ecology
Down
  1. 1. occurs when organisms need to use the same resources at the same time
  2. 4. the study of the interaction between organisms and their environment
  3. 5. a relationship in which one organism benefits, and another organism is harmed
  4. 8. does not kill the host
  5. 9. a relationship in which one organism is helped and the other other organism is not harmed or helped
  6. 11. an area where organisms live
  7. 15. community a group of populations that interact in the same geographic area at the same time
  8. 18. a large group of ecosystems that share the same climate and have similar types of biological communities