Ecology Review

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Across
  1. 2. eats meat
  2. 3. provides energy for food chains
  3. 4. a close relationship between species that benefits at least one of the species
  4. 6. makes its own food
  5. 8. the variety of life (or species) on Earth
  6. 10. used by plants
  7. 13. used by animals
  8. 15. factor living or once living (and now dead)or made by something that was alive
  9. 17. one living thing
  10. 19. eats plants
Down
  1. 1. eats plants and meat
  2. 2. all of the different populations living in an area (no abiotic factors)
  3. 5. all of the living and nonliving things that interact in an area
  4. 7. made up of weathered rock, minerals, humus, water, and air
  5. 9. being dependent on others for some needs, being mutually dependent on each other
  6. 11. how an ecosystem changes over time
  7. 12. all the members of one species living in an area
  8. 14. eats dead animals
  9. 16. factor an enviromental factor that is not alive, never lived, and was not part of something living
  10. 18. must eat something for energy