Across
- 2. Zonation occurs as vegetation types change rapidly as you go up a mountain
- 4. charged atoms
- 5. the sharp temperature boundary
- 8. occur on the bottom
- 10. place with scarce tree cover
- 12. a pair or group of atoms that exist as a single unit
- 13. comprise the water column
- 14. broad types of biological communities
- 17. the material of which bio molecules are made
- 20. wetlands without trees
- 23. drought tolerant forests
- 25. areas of saturated ground
Down
- 1. the energy that can be transferred between objects
- 3. occur where rainfall is abundant
- 6. the ability to do work
- 7. minute compartmentS at which life is carried out
- 9. northern forests
- 11. losing leaves seasonally
- 15. substances composed of different types of atoms
- 16. substances that readily give up hydrogen ions in water
- 18. the best known marine ecosystems
- 19. Forests found in the high mountains where fog and mist keep vegetation wet all the time
- 21. cone-bearing
- 22. shallow ecosystems
- 24. wooded wetlands