Organisms III

Which of these human activities is most damaging to the air?

• Apple picking in the fall
• Burning trash
• Planting a garden
• Riding a bike

A mother robin approaches the nest.  The baby robins open their mouths.  Which is NOT an explanation for their behavior?

• The babies hear their mother approaching.
• The babies expect to be fed.
• The babies are afraid of their mother.

Turtles lay their eggs on South Carolina beaches and return to the sea.  Baby turtles hatch from the eggs and find their way to the ocean.  This is an example of:

• a learned behavior.
• camouflage.
• an instinct.
• mimicry.

A rabbit is placed in an environment in which it has no natural enemies.  What will happen?

• The rabbits will overpopulate and use up all the resources.
• The rabbits will become extinct.
• The plants in the area will grow much faster.
• The environment will stay the same.

Some animals have whiskers, antenna, or sensitive body hairs that help it identify food.  Which sense are these animals using?

• Hearing
• Taste
• Smell
• Touch

Which of the following traits of a dog is NOT inherited from its parents?

• The color of its fur
• The type of breed it is
• The presence of fleas in its fur
• The color it its eyes

What changes in the environment cause animals to hibernate?

• Temperatures go down and food becomes scarce.
• Pollution dirties the air, water, and land.
• Resources are used up by humans.
• They have eaten enough food.

What of the following is NOT an example of learned behavior?

• A bear cub learning to fish from its mother.
• Bats using echolocation to find food.
• A mouse getting faster each time it runs though a maze.
• A dog doing a trick when commanded by its owner.

Which of the following organisms have the greatest effect on an environment because of the changes they make to their environment?

• A squirrel building a nest in a tree.
• Beavers building a dam across a stream.
• Moles tunneling through a tomato garden.
• Termites eating dead wood.

Owls hunt for their prey at night.  Which sense best helps the owls to hunt?

• Taste
• Smell
• Sight
• Touch