ecology

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Across
  1. 2. mix of sand clay and silt
  2. 6. water runs thru this easily
  3. 8. recycles dead things and waste
  4. 10. eats only meat
  5. 12. all living and nonliving things in an area
  6. 13. animals do this and expel carbon dioxide
  7. 16. one species benefits the other is harmed
  8. 17. plants use this to get energy
  9. 21. both species benefits
  10. 22. eats meat and plants
Down
  1. 1. must eat something for energy
  2. 3. makes its own food
  3. 4. how an ecosystem changes over time
  4. 5. all living things in one area
  5. 7. eats only plants
  6. 9. one living thing
  7. 11. species being dependent on each other
  8. 14. all the members of one living thing
  9. 15. one species benefits and nothing happens to the other
  10. 18. eats dead animals
  11. 19. a relationship between two species that benefits at least one of the two
  12. 20. absorbs too much water for plants