Vertebrate

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Across
  1. 3. some animals
  2. 6. water and land
  3. 10. human birth
  4. 12. birds legs
  5. 13. shape of birds
  6. 17. lifecycle
  7. 18. baby hatch
Down
  1. 1. baby frogs
  2. 2. steady temp
  3. 4. animal babies
  4. 5. humans
  5. 7. skeleton
  6. 8. no backbones
  7. 9. live in water
  8. 11. change temp
  9. 13. cover reptiles
  10. 14. to breathe
  11. 15. hair
  12. 16. birds warm
  13. 17. drink