Introvert's Galore

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Across
  1. 1. Someone who is not an introvert or an extrovert
  2. 3. A person who needs a lot of social stimulation
  3. 7. Stress or force acting on an object.
  4. 9. A chemical substance at the end of a nerve fiber
  5. 10. My mother gave me a _______ for cleaning my room.
  6. 11. Your body uses ___ as instructions to make you look how you do
  7. 12. A red liquid in our bodies that helps keep us alive.
  8. 14. _________ is the scientific study of the mind and behavior.
  9. 15. An organ apart of the nervous system.
Down
  1. 2. A person who doesn't need much social stimulation
  2. 4. The places, environment, and people around you.
  3. 5. The biology of the nervous system.
  4. 6. A branch of biology that deals with the heredity and variation of organisms
  5. 8. The act of arousing action or releasing more dopamine.
  6. 13. The chemical that influences reward :motivational behavior.