ANIMAL CLASSIFICATION

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Across
  1. 2. animal with a backbone
  2. 3. the number of legs an insect has
  3. 8. has wings and feathers
  4. 9. hard outer covering
  5. 10. has moist skin
  6. 11. young, mammals reproduce this way
Down
  1. 1. ae part of this large group
  2. 4. has dry scaly skin
  3. 5. have hair or
  4. 6. where amphibians can live
  5. 7. blooded, when the body temperature varies