Inside of a Dog what dogs see, smell, and know

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Across
  1. 2. a unique relationship
  2. 4. Happy,sad,mad, are ___
  3. 6. animal on 4 legs, has hair, and is a common pet
  4. 7. _____ changes
  5. 9. a dog's ____ tag
  6. 11. nickname for Deoxyribonucleic Acid
  7. 13. another word for a pound
  8. 14. another word for see
  9. 15. what you do when you are happy
  10. 17. animal that's similar to dogs and hunts in a pack
  11. 19. The _______ between humans and dogs
Down
  1. 1. Pump was in true ____ with the person who adopted him
  2. 3. psychological ______
  3. 5. an animal's babies
  4. 7. The nickname of the dog
  5. 8. are genetically determined characteristic
  6. 10. part of the nose where dogs can inhale air and sniff
  7. 12. animals that eat only meat
  8. 16. a really small and aggressive dog
  9. 18. a gathering where people haven't seen each other for a long time