Across
- 3. changing weather patterns
- 4. organisms that uses something
- 8. organisms dependent on each other for food
- 11. top of food chain
- 13. long term changes in climate or weather
- 15. organisms that make organic compounds
- 16. being hunted
- 18. continous movement of water
- 19. process that occurs within plants
Down
- 1. sugar for body
- 2. gas needed for survival
- 4. gas needed for photosynthesis
- 5. decomposes organic material
- 6. fixed pattern of behavior
- 7. resulting from living things
- 9. not derived from living things
- 10. gas traps heat in the atmosphere
- 12. organic matter used as fuel
- 14. community of living organisms
- 17. natural home