How can some animals see in the dark?

When a bright light hits an eye, the pupil

• gets bigger.

• gets smaller.

• stays the same.

Tags

NGSS.MS-LS1-8

When you go into a dark room your pupil

• get larger.

• will focus more easily on objects.

• will get smaller.

Tags

NGSS.MS-LS1-8

When the pupil is larger

• the image on the retina is darker.

• the image on the retina is more in focus.

• the image on the retina is brighter.

The size of the pupil is changed as the

• cornea expands (gets larger) or contracts (gets smaller)

• iris expands (gets larger) or contracts (gets smaller)

• retina expands (gets larger) or contracts (gets smaller)

Your pupil will get larger when it needs

• more light

• less light

• is trying to focus

Tags

NGSS.MS-LS1-8

Nocturnal animals can see easily at night because

• their pupils are small so they get less light in their eyes.

• their pupils are small so they get more light in their eyes.

• their eyes have very large pupils that let in a lot of light.

The eyes of nocturnal animals might seem to glow because

• there is too much light so it bounces off the retina

• there is a reflective colored coating on the back of the eye.

• there is a bluish reflective coating on the cornea.

Why do some photos of humans look like we have glowing red eyes?

• The retina of our eyes has a reflective coating that is red.

• The backs of our eyes have a reflective orange coating.

• The backs of our eyes have a lot of red blood vessels.