The coloured part of the eye that contains muscles to contract or expand the pupil is the
A)iris.
B)lens.
C)sclera.
D)cornea.

Question

Quizplus · Accepted Answer

The iris is the coloured part of the eye that surrounds the pupil and contains smooth muscle fibers that control the size of the pupil. The iris is responsible for regulating the amount of light that enters the eye by adjusting the size of the pupil.

The Coloured Part of the Eye That Contains Muscles to Contract