The wings and feathers help birds fly and the feathers help keep them ____________.

Birds lay eggs with hard ____________.

The eggs keep the baby birds _________ safe from animals that want to eat them.

Fish have____________ to help them breathe in water.

Scales all over their bodies help keep them safe from ____________ fish that want to bite them.

Fish don’t have legs, but their ____________ and tails help them swim.

Fish lay their ____________ in water,and their eggs are ____________.

Amphibians are very ____________can live on land and in

water.

Amphibians need to have ____________, so they live in wet places.

Amphibians lay their soft eggs in ____________. They have gills when they're ____________ and the gills help them ____________ in water.

Most amphibians, like frogs, have legs that help them walk and ____________ on land.

Some mammals live on land and some live in water.

Whales are ____________, and cats, rabbits, and lions are land mammals.

Hair or ____________ covers most land mammals’ bodies and this helps keep them warm.

____________ are mammals too! Mammals don’t

lay eggs. Their babies ____________ from their mothers.