Across
- 2. A group of various species interacting is a ...
- 5. non-living physical and chemical components of an ecosystem
- 9. the process that uses the suns energy to convert to chemical energy
- 12. The layer of gases surrounding the Earth
- 14. about 2% of the earths water is tied up in what?
- 15. an organism that makes its own food
- 16. an organism that needs to eat other things for energy
Down
- 1. the ability to maintain an ecological balance
- 3. what we breath in for cellular respiration
- 4. living things and their remains in an ecosystem
- 6. All of earths water in any form
- 7. The zone around the Earth where life can exist
- 8. Large regions with the same plant life
- 10. one of the outcomes of photosynthesis
- 11. Fossils are an important part of which cycle?
- 13. all energy comes from this