science

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Across
  1. 3. one organism living or inside another and harming it
  2. 6. living thing
  3. 7. an interation in which are organism kills another for food
  4. 8. factors nonliving parts of an habitat
  5. 10. is the series of changes that occur in an area where no soil organism exist
  6. 11. the largest population that an area can support
  7. 12. is an environmental factor that cause a population to decrease
  8. 13. leaving a population
  9. 14. physical characteristic that allow organisma to live successfully in their envirnments
  10. 17. living parts of a habitat
  11. 18. the organism it lives on
  12. 19. the organism that is killed
  13. 20. the role of an organism in its habitat or how it makes its living
Down
  1. 1. number of births in a population
  2. 2. the first species to populate the area
  3. 4. the organism that does the killing in this case the tiger shark
  4. 5. moving in a population
  5. 9. the number of individuals in an area of a specific size
  6. 15. number of deaths in a population
  7. 16. the organism that benefits