environment vocab

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Across
  1. 1. layer of gas and suspended solids extending from the Earth's surface
  2. 6. species avoid competition by dividing use of resources
  3. 7. both the biotic and abiotic components in a habitat
  4. 8. all portions of earth where life exists
  5. 9. disproportionate weight in favor of or against an idea or thing
  6. 12. one living being
  7. 13. ecological interaction between two or more species where each species has a net benefit
  8. 15. non-living chemical and physical parts of the environment
Down
  1. 2. water that is on the surface of the planet, underground, and in the air
  2. 3. close, prolonged association between two or more different biological species
  3. 4. proposed explanation for a phenomenon
  4. 5. close relationship between species, where one organism, lives on or inside another organism,causing it some harm
  5. 10. biological interaction where one organism kills and eats another organism
  6. 11. living or once living components of a community
  7. 14. rock, soil, sediment