Animal adaptations

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Across
  1. 3. Very dry
  2. 10. Going alone without companions
  3. 11. an internal organ that some kinds of animals have in their digestive tracts
  4. 12. large flightless bird
  5. 13. how the body manages the temperature
  6. 14. study of how something works
Down
  1. 1. the structure of something
  2. 2. when an animal adapts to something
  3. 4. To shine with glittery light
  4. 5. how one conducts themselves
  5. 6. To push forward
  6. 7. The only one around
  7. 8. Very great in extent
  8. 9. How the body turns food into energy