Across
- 1. Their skeleton is made of cartilage
- 4. Similar to bugs but include crabs
- 6. They are jawless fish
- 7. The baby Drinks milk from the mum's pouch
- 8. They look similar to a sponge
- 10. Feed their babies on milk
- 12. Dry scaly skin
- 13. They are bony fish
Down
- 2. They have a nerve cord down their backs
- 3. They don't have a jaw
- 4. They take in oxygen through their skin
- 5. They are slimy and sluggish
- 7. They lay their legs
- 9. Long tapered bodies with pointy ends
- 11. They have feathers covering their body