A creature that has scaly skin, breathes with lungs, and lays eggs that have a leathery covering is

• an amphibian

• a bird

• a reptile

• a fish

A creature that lives a double life, starting as a tadpole in the water and changing into a land animal is

• an amphibian

• a bird

• a reptile

• a fish

A creature without legs that has gills to breathe and a scale-covered body is

• an amphibian

• a bird

• a reptile

• a fish

A creature that has feathers, hollow bones, beaks, and lays eggs is

• an amphibian

• a bird

• a reptile

• a fish

The diet of most snakes is primarily

• insects

• curstaceans

• rodents

• algae

Most fish have a very well developed sense of

• smell

• sight

• taste

• all of these

Birds use theirs songs to

• find a nest

• warn other birds

• entertain humans

• all of these

An endotherm that is covered with hair or fur, breathes through lungs, and produces milk to feed her young is

• an amphibian

• a reptile

• a mammal

• a bird

Ectotherms regulate their body temperatures by

• changing color

• basking

• burying themselves

• all of these

The skeletons of vertebrates are made from either bone or cartilage.

• True

• False