Across
- 3. glucose
- 6. oxygen
- 11. matter
- 14. species
- 15. mating
- 17. symbiosis
- 21. greenhouse
- 22. respiration
- 23. decomposition
- 24. ecosystem
- 25. recapture
Down
- 1. fire
- 2. predator
- 4. evaporation
- 5. deforestation
- 7. control
- 8. commensalism
- 9. population
- 10. immigration
- 12. chlorophyll
- 13. abiotic
- 16. quadrats
- 18. immune
- 19. hydrosphere
- 20. drought