Unit 2 Vision Chapter 4

Front

What does 'nocturnal' mean?

Back

An animal that is active during the night and can see well in low light.

Front

What type of light do nocturnal animals need to see well?

Back

Low light.

Front

What happens if the receptors in an animal's eyes don't respond enough?

Back

The animal may not see well.

Front

What do humans need from their sense receptors to get information from the environment?

Back

The right amount of information.

Front

What is the role of the optic nerve?

Back

It carries information from the eye to the brain.

Front

What are light receptors?

Back

Cells in the eyes that respond to light and help animals see.

Front

What does 'sensitive' mean in the context of vision?

Back

Having the ability to detect small amounts of light.

Front

What is the difference between nocturnal and diurnal animals?

Back

Nocturnal animals are active at night, while diurnal animals are active during the day.

Front

Why do some animals have high sensitivity light receptors?

Back

To help them see well in low light conditions, especially at night.

Front

What is an example of a nocturnal animal?

Back

An owl.