Across
- 5. Reproductive structure
- 6. Control center organ
- 8. Six-legged arthropod
- 9. Body covering filament
- 10. Circulatory fluid
- 12. Organ of sight
- 14. Mature organism
- 17. Food intake opening
- 18. Legless invertebrate
- 19. Pumping organ
Down
- 1. Young organism
- 2. Smell organ
- 3. Cold-blooded vertebrate
- 4. Aquatic vertebrate
- 7. Feathered vertebrate
- 11. End of life
- 13. Organ of hearing
- 15. Breathing organ
- 16. Chewing structure
- 17. Warm-blooded vertebrate