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9 June, 16:29

Cells in the human eye send nerve impulses to the brain that cause the pupil to constrict. This is an example of a reaction to what kind of stimuli?

chemicals

light

touch

sound

+3
Answers (2)
  1. 9 June, 17:26
    0
    This is a reaction to light.
  2. 9 June, 17:55
    0
    It's a reaction to light stimulation
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