Chapter 4 Ecology Crossword

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Across
  1. 2. Includes all parts of earth
  2. 7. Ecosystem that are living or used to be living
  3. 9. An environment in which organism lives
  4. 11. Describes how organisms are arranged within an area
  5. 13. Individuals that interbreed & produce fertile offspring
  6. 15. Species that live in the same area
  7. 16. Anything an organism needs
Down
  1. 1. All populations in in a particular area
  2. 3. Proportion of males to femals
  3. 4. Includes all living things physical environment in an area
  4. 5. Number of organisms of each age within a population
  5. 6. The number of organisms in a population at a given time
  6. 8. Visual tools used to show the age structure of popualtion
  7. 10. Number of individuals within a population per unit area
  8. 12. Ecosystem that has never been living
  9. 14. How organisms interact with each other & environment