Spelling Words

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Across
  1. 5. No longer existing
  2. 7. Found on birds, they help them fly
  3. 8. Something that is evident
  4. 12. To act like something else
  5. 13. A behavior caused by a stimulus
  6. 14. A group of animals that live on land and in the water
  7. 16. A hard outer covering that supports and protects some animals
  8. 18. To shed an outer covering
  9. 19. Organs for breathing
Down
  1. 1. The main bone that runs along the middle of the back
  2. 2. A simple, automatic behavior
  3. 3. A behavior that an animal is born with
  4. 4. A place where an animal lives
  5. 6. Animals that have hair and fur
  6. 9. Colors, shapes, and patterns that help you blend in
  7. 10. The way a living thing acts
  8. 11. Your surroundings
  9. 15. Animals that have dry, scaly skin
  10. 16. Having a population that is falling
  11. 17. The cause of a behavior