Across
- 2. Skeleton made of bones
- 5. Shell consisting of two hinged parts
- 7. Known for being neurologically advanced; squirt ink in defense
- 9. Fish where fins are made of webs of skin supported by bony spines
- 10. Fish whose skeleton is made from cartilage
- 11. Have multiple rows of teeth; detect prey by electrical sense; have dermal teeth on skin to swim fast
- 12. Flat body cartilaginous fish; use electrical sense to detect prey; Enlarged pectoral fins
Down
- 1. Fish where fins are lobe-like and jointed to the body by a single bone
- 3. Jawless fish that excretes slime to chase away predators
- 4. Parasitic jawless fish that has an oral disk used to suck blood of fish
- 6. Fish that resemble eels but are not related; have no jaw
- 8. Invertebrates with hard exoskeleton