Question

state the function of iris

Answer 1

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Iris: The iris of the eye is the thin, circular structure made of connective tissue and muscle that surrounds the pupil.
The color of our eyes is determined by the amount of pigment in the iris.

In addition to giving the eye its color, the iris acts like the diaphragm of a camera and controls the size of the pupil.
One muscle within the iris constricts the pupil in bright light (full sunlight, for example), and another iris muscle dilates (enlarges) the pupil in dim lighting and in the dark.

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Answer 2

1. iris control the size of pupil.
2. our eyes colour is depends on the colour of our iris.