Fish are vertebrates

This type of vertebrate is warm-blooded, gives birth to their young, and produce milk to feed them

All mammals have fur or hair on their bodies at some time in their lives

Birds and mammals have in common that they both ______.

Birds give birth to live young

Mammals and reptiles are alike in that they both __________

Reptiles are ________

Amphibians, like frogs, live ______.

Fish breathe through __________.

This type of vertebrate live both in water and land, are cold-blooded, and hatch from soft eggs underwater. A tadpole is an example.

This type of vertebrate is cold-blooded, live underwater, and breathe only through gills.

_________ are vertebrates that breathe air into lungs, lay eggs, and are cold-blooded.

______________ are vertebrates that have lungs, are warm-blooded, and lay eggs. They also have bodies that are covered with feathers.

Polar bears are