Across
- 3. the first stage in succession
- 7. The study of how living and non-livingthings affect each other
- 9. using a GPS or compass
- 10. A group a the same living things in a community
- 12. the middle stage of succession
- 14. Everything that affects living or non-living things in an area
- 16. not living
Down
- 1. A tree that sheds leaves annually
- 2. The roll that each living thing plays in a habitat
- 4. o2
- 5. Anything relating to water
- 6. A type of evergreen tree that produces cones
- 8. co2
- 11. h2o
- 13. the hunter
- 15. something that is living
- 17. the last stage in succession