adole9nebutta adole9nebutta
  • 03-12-2016
  • Biology
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The pupil opens and closes automatically explain wether this is involuntary or voluntary action

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BillTheBadger
BillTheBadger BillTheBadger
  • 03-12-2016
Involuntary because we have no control over opening and closing our pupils, it does it by itself as a response to the outside environment.
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