STAAR Review- Organisms and Environment

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Across
  1. 2. changes that occur quickly in an ecosystem
  2. 4. living things
  3. 5. organisms that are more adapted to their environment survive and pass on the gene
  4. 7. the interaction between species that share limited resources
  5. 8. The place that an organism lives
  6. 11. when two species both benefit from a relationship
  7. 13. the rise in Earth's temperature and its effects
  8. 16. the change in a community over time
  9. 17. the variety of life. key to preservation of a healthy world
  10. 18. the first step of ecological succession on barren rocky land
  11. 19. all the biotic and abiotic components that interact within an area at once.
  12. 20. the relationship between two species where one lives on or in the other at its considerable expense
Down
  1. 1. a boundary between water saturated ground and unsaturated ground
  2. 3. changes slowly occur in an ecosystem
  3. 4. the variation of species in an ecosystem
  4. 6. non-living things
  5. 9. the relationship between species that is only beneficial to one but does not affect the other
  6. 10. the balance of an ecosystem
  7. 12. succession occurring after a major disturbance but intact soil
  8. 14. an area of land that separates water flowing to different bodies of water
  9. 15. the draining away of water from a surface into a body of water