UNIT 1 - NATURAL SCIENCE: INTERACTION

Light passes through the _?_ and enters the eye through the _?_.

• fovea / cornea

• pupil / lens

• cornea / pupil

It is the colored part of the eye.

• retina

• iris

• lens

• cornea

It focuses light on the retina at the back of the eye.

• lens

• fovea

• iris

• pupil

Nerve receptors in the _?_ detect light and send electrical signals to the _?_.

• cornea / gustatory nerve

• retina / auditory nerve

• pupil / optic nerve

• retina / optic nerve

Electrical signals move along the optic nerve to the _?_ .

• fovea

• brain

• peripheral nervous system

A blind spot that cannot detect light. It is the place where the optic nerve meets the retina

• cornea

• lens

• pupil

• fovea

• iris

1 is _?_ .

• sweat gland

• hypodermis

• hair

• blood vessels

2 is _?_ .

• nerves

• blood vessels

• dermis

• pores

3 is _?_ .

• epidermis

• dermis

• hypodermis

4 is _?_ .

• epidermis

• dermis

• hypodermis