Across
- 3. Animal organization center
- 6. Little village
- 8. Trash system
- 11. Town hall
- 12. Food factory
- 13. Dense structure
- 15. Watershed
- 17. Kitchen
- 18. Basic unit of animal life
- 19. Plant city kitchen
- 20. Mailing system
Down
- 1. Bridges
- 2. eukaryotic cells
- 4. Cleaning and factory
- 5. Energy generator
- 7. The ocean
- 9. Catering
- 10. Plant city walls
- 14. Animal city walls
- 16. Single house