Vision & Light - Chapter 3

Front

What is the role of light receptors in vision?

Back

Light receptors detect light and send information to the brain through the optic nerve.

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Front

What is the function of the optic nerve?

Back

The optic nerve transmits visual information from the light receptors in the eye to the brain.

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Front

What does the brain do with the images it receives?

Back

The brain compares the images to memories and helps make decisions.

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Front

What is the pupil?

Back

The pupil is the opening in the center of the eye that allows light to enter.

Front

What does it mean to 'sense' in the context of animals?

Back

To sense means how an animal gets information from its environment.

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Front

What is a process in terms of information?

Back

A process is to change information from one form to another.

Front

How does the brain help animals survive?

Back

The brain helps animals survive by processing images and making decisions based on memories.

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Front

What is the relationship between light and vision?

Back

Light is necessary for vision as it allows light receptors to detect images.

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Front

What happens when light enters the eye?

Back

Light enters through the pupil and is focused by the lens onto the retina.

Front

What is the retina?

Back

The retina is the layer at the back of the eye that contains light receptors.

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