Question
What is the iris?
the nerve at the back of the eye
the protective layer over the eye
it controls colroblindness
a muscle that reacts to light by contracting
the nerve at the back of the eye
the protective layer over the eye
it controls colroblindness
a muscle that reacts to light by contracting
Answers
GPT 3.5
The iris is a muscle that reacts to light by contracting and expanding, controlling the size of the pupil and the amount of light that enters the eye. It is the colored part of the eye that surrounds the pupil.