Biology
Across
- 3. starts with soil
- 5. home
- 6. the different amounts
- 12. not alive
- 13. starts from bare rock
- 14. non-native species
- 15. taking trees
Down
- 1. different alive species
- 2. taking too much
- 4. amount of life a place can support
- 7. home
- 8. alive
- 9. life form
- 10. amount
- 11. poison