1. Which BEST describes vertebrate animals?
A. They lay eggs.
C. They have legs.
B. The have backbone.
D. They do not have backbone
2. Which of the following do mammals do?
A. They live on land and in water.
B. They use fins and tails to move.
C. They lay eggs and hatch their young ones.
D. They feed their young with milk from their mammary glands
3. Which characteristic is common to reptiles, amphibians, fish, and
birds?
A. They lay eggs.
C. They live on land.
B. They have legs.
D. They are cold blooded animals.
4. Which is a characteristic of reptiles?
A. They have fins.
B. They have dry scaly skin.
C. They are warm-blooded animals.
D. They can feed their young with milk.
5. Which is a characteristic of an amphibian?
A. They have wings.
B. They born their offspring alive.
C. They have moist scale less skin.
D. They are warm-blooded vertebrates.​