Amplify Vision and Light Ch 1-4

Front

What is the role of light in vision?

Back

Light allows animals to see by reflecting off objects and entering their eyes.

Front

What are low sensitivity light receptors?

Back

Low sensitivity light receptors are cells in the eyes of animals that do not detect light well, making it hard for them to see in dim light.

Front

What do high sensitivity light receptors help animals do?

Back

They help animals see better in low light conditions, such as at night.

Front

What is the first step in the sensory process?

Back

Senses take in information from the environment.

Front

How does light travel to an animal's eye?

Back

Light reflects off an object and travels to the animal's eye.

Front

What happens when light hits an object?

Back

The object reflects the light, allowing it to be seen.

Front

True or False: Animals with low sensitivity light receptors can see well at night.

Back

False. They cannot see well at night.

Front

What is necessary for an animal to see an object?

Back

Light must reflect off the object and reach the animal's eye.

Front

What is the last step in the process of seeing an object?

Back

Reflected light from the object travels to the animal's eye.

Front

What is the difference between day and night vision in animals?

Back

Animals that hunt at night have high sensitivity light receptors, while those that hunt during the day do not need them.