verterbrates & inverterbrates

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Across
  1. 3. has backbone
  2. 6. lays leathery eggs
  3. 9. backbone for vertebrates.
  4. 10. animal that flys and has feathers
  5. 11. body segmented internally
  6. 13. inverterbrates with legs
  7. 15. something that dosent lay eggs.
Down
  1. 1. inverterbrates with spongy skin it also has holes to breathe
  2. 2. has no backbone
  3. 4. a slimy animal lives on land spens most of time in water
  4. 5. has skeleton on outside of body
  5. 7. altough blind and naked they crawl to there mothers pouch
  6. 8. has tenticles inverterbrates
  7. 12. shell and soft skin
  8. 14. skin covered in scales