Light and Sight - lesson 1

1

Which of the following organs are working together for seeing different objects ?.........

Nose and brain.

Tongue and brain.

Eyes and brain.

Ears and brain.

2

All the following things are considered as a light source, except.........

the Sun.

eyes.

the light lamp.

fire.

3

............ energy affects the sensory receptors in eyes of living organisms causing vision.

Sound

Heat

Electric

Light

4

To know what you are seeing and recogonize it, the.......... must receive sensory impulses from eyes.

sensory receptors in ears

sensory receptors in eyes

spinal cord

brain

5

If you see someone walking around in a dark place without hitting anything around him, so this person may............

have a lot of food energy.

wear a night vision goggles.

Have the same hearing ability of bat.

have a big ability to breathe.

6

Animals that have a strong vision to hunt at night, include...........

owl and snake.

owl and cat.

cat and snake.

owl and bat.

7

The structural adaptation that helps the fishing cat to catch a prey at night, is that its ability..........

of excellent night vision.

to feel the heat of prey's body.

to hide inside the forest.

to digest its prey easily.

8

The thing that makes the eyes of fishing cats glow at night, is...........

the main controlling centre of its body.

the behavioral adaptation with the surroundings.

the light that bounces off the surroundings.

the light that bounces off the membrane on the back of their eyes.

9

The Sun and the Moon appear bright, because...........

the light is bounced off the Sun and is emitted from the Moon.

the light is bounced off both of them.

the light is emitted from both of them.

the light is bounced off the Moon and is emitted from the Sun.

10

.......... Has poor night vision, so it depends on feeling the heat of prey's body.

Snake

Bat

Fishing cat

Owl

11

.......... Has poor night vision, so it depends on the sound that bounces off prey's body.

Fishing cat

Owl

Bat

Snake

12

........... Has excellent night vision and its eyes glow at night.

Fishing cat

Snake

Bat

Owl

13

......... Has extraordinary sight at night and bowl-shaped face.

Owl

Bat

Snake

Fishing cat