Science Test 3

The structure behind the pupil that refracts and focuses light it recieves is the ____.

• retina

• lens

• optic nerve

• iris

The large bundle of fibers that carries the message of what the eye has seen to the brain is the __.

• retina

• cornea

• optic nerve

• lens

The type of vision in which both eyes work together to produce an image of the same object is ____.

• binocular vision

• microscopic vision

• monocular vision

• telescopic vision

Many nocturnal animals have an extra layer of reflecting cells behind the retina called the __.

• mirror

• rod

• cone

• tapetum

The transparent covering the front of the eyeball is the ___.

• iris

• pupil

• retina

• cornea

The opening that allows light to enter the eye is the __.

• iris

• pupil

• lens

• cornea

The muscles that regulate the size of the pupil are found in the ___.

• iris

• lens

• optic nerve

• retina

The light-sensitive lining covering the outside of the eyeball is the

• cornea

• iris

• retina

• lens

A material that does not allow light to pass straight through it is

A material that allows light to pass straigh through it is