Biology cross word

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Across
  1. 5. An organism that mostly eats meat
  2. 6. Number of different types of organisms in an area
  3. 8. Populations of different species that live and interact in the same area
  4. 11. Earth's solid, outer layer
  5. 13. The gradual build-up of chemicals in an organisms body
  6. 15. Part of our planet, water, land, and air
  7. 16. System where living and non-living things interact with each other
Down
  1. 1. An organism that carries photosynthesis
  2. 2. Consumer that breaks down organic matter and releases the nutrients back into the ecosystem
  3. 3. Living, organisms
  4. 4. Environmental factor that prevents an increase in the number of organisms in a population
  5. 7. Converts nitrates into nitrogen gas
  6. 9. Species at risk of becoming endangered
  7. 10. Process plants use to produce carbohydrates
  8. 12. Large geographic region that contains similar ecosystems
  9. 14. Non-living, physical things