Ecology part 2

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Across
  1. 4. an item or object that is a necessity to work efficiently
  2. 6. what an organisms intake consist of
  3. 7. when organisms move when resources lack
  4. 8. living factors in an environment
  5. 11. biological community of interacting organisms in an environment
  6. 12. third consumer in a food chain
  7. 14. a period of inactivity where a organism lives off of stored resources
  8. 15. the environment where a organism lives
  9. 16. Organic matter that derives from living or recently living organisms
  10. 17. weather conditions in an area
  11. 18. a organism that feeds off of tertiary consumers
  12. 19. living organisms consisting of similar individuals capable of exchanging genes or interbreeding
Down
  1. 1. plants and animals that have migrated to areas where they did not originate
  2. 2. relationship where two or more organisms fight for the same resource
  3. 3. the food primary consumers eat
  4. 5. the first consumer in a food chain
  5. 9. an individual plant animal or life form
  6. 10. all organisms in a habitat working together
  7. 13. nonliving factors in an environment
  8. 15. animal that gets energy from autotrophs