Across
- 1. a parasitic ancient fish
- 5. The upper chamber of the heart
- 6. a hard bony cover that protects the gills
- 10. a fish that possesses bony or spiny fins
- 11. a fish-like invertebrate, has a notochord that persists throughout its life.
- 12. this organ is used for waste and reproductive systems
- 13. This is a sensory organ system in aquatic vertebrates
- 15. this fin helps stabilizing the fish
- 17. a organ that helps control buoyancy
- 18. this fish is also known as mermaid purse
- 19. The lower chamber of the heart
Down
- 2. animals that are deemed cold blooded
- 3. a fish that possess fleshy, paired fins
- 4. scales that have a sandpaper like feeling
- 7. This fin is compared to human arms
- 8. a rod that defines all carbohydrates
- 9. This fin is used for propulsion
- 14. a fish with a venomous stinger on its tail
- 16. This is one of the upper chambers of the heart that receives blood.
- 20. a slime producing fish that coils itself