Interdependency

Which of these is an example of one living thing depending on another living thing?

• Cat walking on the sand

• Bird building a nest in a tree

• Dog warming in the sunlight

• Squirrel drinking water

A dog and a cat live with a man in a house with a big yard. What living thing does the dog depend on to meet its needs?

• The House

• The Yard

• The Cat

• The Man

A classroom has a frog in a tank with some crickets. The frog depends on the crickets for

• Air

• Shelter

• Food

• Water

The picture shows a tree lizard. Some animals, such as this lizard, live in trees because

• trees provide shelter and food.

• tree lizards sleep in the day.

• tree lizards are very small

• trees grow in many places

How does a flower depend on a bee to survive?

• To smell it.

• To tell her she's pretty.

• To take the pollen to another flower.

• To take clean it.

How do trees depend on squirrels?

• Squirrels bury seeds and plant trees.

• Squirrels cut down trees.

• Squirrels don't help trees.

How do plants depend on humans?

• Humans water plants and give them carbon dioxide to breathe.

• Humans kill plants.

• Humans don't like plants.

Why do humans depend on plants?

• Humans need plants to clean.

• Humans need plants for food and oxygen.

• Humans need plants to sing to them.

How do deer use plants?

• To play with them.

• To eat and hide.

• To clean with.

How does this shark depend on the fish?

• To play with.

• To scare them.

• To keep him clean.