U2 Ch4 - Vision & Light

Animals' _____ can warn them when predators may be approaching.

• high-sensitivity light receptors

• sensory system

• low-sensitivity light receptors

• ability to be nocturnal

When animals hear a predator int he woods, they may seek shelter.

• True

• False

Animals can react in different ways to the same amount of information from the environment because some animals have a more sensitive sense of hearing, touch, smell, taste or vision than other animals.

• True

• False

_____ means responding to small amounts of information.

• Diurnal

• Nocturnal

• Sensitive

• Sense Receptors

An example of sensitive is when a mole touches a worm, the mole's touch receptors only need a large amount of information from the worm before they send enough information to its brain.

• True

• False

Some animals have more _____ than others which allows them to take in more information.

• sense receptors

• brains

• legs

• fur

Some animals' sense of touch allows them to feel the vibrations when predators are moving nearby because they have more _____.

• sense of sight

• sense of smell

• touch receptors

• information

_____ animals, which means they are mostly active during the daytime, need plenty of light to see.

• Diurnal

• Nocturnal

• Sensitive

_____ which means they are mostly active at night, are able to see better at night.

• Diurnal

• Nocturnal

• Sensitive

Some nocturnal animals' sense of _____ is more sensitive than its sense of sight and is used to find their prey.

• touch

• hearing

• taste