Chapter 3

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Across
  1. 3. small precise movement like scratching something
  2. 4. the brains outer layer
  3. 6. movements that include large muscle movements such as running
  4. 8. a chemical messenger between nerve cells
  5. 11. regulates hunger and body temperature
  6. 12. a babys repeated speech sounds
Down
  1. 1. an nerve cell that can carry messages
  2. 2. one word that expresses a single thought
  3. 5. an ablity that involves body movement
  4. 7. a ranking out of 100.
  5. 9. Being unusually short for someones age due to impaired growth
  6. 10. a nerve cells long message-sending extension