Across
- 2. protects and covers the anatomy
- 6. extracts oxygen from the water
- 8. provides the framework of the fish
- 9. prominent fin on top of the fish
- 10. non-bony fish
- 11. aquatic vertebrates with gills
- 12. bony plates that protrude from the fish's skin
Down
- 1. regulate temperature by external means
- 3. most bony fish, fins made of webs supported by rays
- 4. W shaped bands on fish muscle
- 5. fin sticks out from the fish tail
- 7. webbed rays attached to the body by a lobe