Question

1. cones are best at detecting:

a) color and detail
b) peripheral vision
c) motion
d) darkness

1. which structure bends light to focus it?

a) retina
b) lens
c) iris
d) cornea

1. the opening through which light enters the eye is the:

a) retina
b) cornea
c) pupil
d) iris

1. which muscles help control the shape of the lens?

a) ciliary muscles
b) iris
c) retina
d) cornea

1. which part of the eye is located at the back and contains receptors?

a) cornea
b) retina
c) lens
d) iris

1. which part helps humans see in dim light?

a) cones
b) rods
c) iris
d) lens

Explanation:

1. Cones are photoreceptor cells in the eye that are responsible for color vision and detecting fine details.
2. The lens bends (refracts) light to focus it onto the retina.
3. The pupil is the opening in the eye through which light enters.
4. Ciliary muscles can change the shape of the lens to adjust for near and far - vision.
5. The retina is located at the back of the eye and contains photoreceptor cells (rods and cones) that detect light.
6. Rods are more sensitive to low - light conditions and help humans see in dim light.

Answer:

1. a. Color and detail
2. b. Lens
3. c. Pupil
4. a. Ciliary Muscles
5. b. Retina
6. b. Rods