Across
- 5. a four-footed animal, especially a member of a group which includes all vertebrates higher than fishes.
- 6. system a row of sensory organs running along the sides of the body
- 8. an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.
- 9. the tailed aquatic larva of an amphibian
- 11. on each side of the fish witch is a protective flap
- 12. live part of their life on land and water
Down
- 1. a cartilaginous skeletal rod supporting the body in all embryonic and some adult chordate animals.
- 2. each of the series of small bones forming the backbone
- 3. an animal of the large phylum Chordata, comprising the vertebrates together with the sea squirts and lancelets.
- 4. fish a fish of a class distinguished by having a skeleton of cartilage rather than bone, including the sharks, rays, and chimeras.
- 7. fish. a fish of a large class distinguished by a skeleton of bone, and comprising the majority of modern fishes.
- 10. bladder a sac that regulates buoyancy