biology

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Across
  1. 3. which carries out a response
  2. 5. travel very slow
  3. 7. The regulation of water levels.
  4. 8. pitching someone is an example of ...
Down
  1. 1. where the brain process the stimulus
  2. 2. the movement of the stimulus
  3. 4. has an instant effect
  4. 6. a key term that means to detect a