John Kozar

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Across
  1. 1. pyramids show the amount of energy that moves from one energy level to the next
  2. 4. a close relationship between two species that benefits at least one of the species
  3. 7. recycles dead organisms and waste
  4. 10. an environmental factor that is that Is not alive, never lived.
  5. 11. living or once lived
  6. 13. clay, sand, loam.
  7. 15. being dependent on each other
  8. 18. one species benefits, the other is neither helped nor harmed
  9. 20. must eat something to gain energy like animals
  10. 21. both species benefit from the relationship
Down
  1. 2. one living thing
  2. 3. eats meat
  3. 5. all the members of one species living in an area
  4. 6. makes its own food
  5. 8. all of the living and nonliving things that interact in an area
  6. 9. the variety of life
  7. 12. eats dead animals
  8. 14. eats plants
  9. 16. one species benefits, the other is harmed
  10. 17. all the different populations living in an area
  11. 19. eats both plants and animals