Which of the following is responsible for controlling how much light enters the eye?
A)cornea
B)lens
C)retina
D)iris

Question

Quizplus · Accepted Answer

The iris is responsible for controlling how much light enters the eye by adjusting the size of the pupil. When there is a lot of light, the iris contracts, making the pupil smaller to let in less light. When it is dark, the iris dilates, making the pupil larger to let in more light.

Which of the Following Is Responsible for Controlling How Much