Across
- 2. turn dead into organic matter
- 4. role of organism
- 6. eat dead animals
- 11. to use up a supply
- 12. washing of surface materials away by water
- 14. place organism lives
- 15. range of organisms
Down
- 1. make own food from environment
- 3. nonliving
- 5. soil washing away
- 7. protecting nr's for the future
- 8. animals in same area
- 9. must eat other organisms
- 10. area of earth that supports life
- 13. living things