These animals lay eggs and breathe through their gills and moist skin.

These animals lay eggs and live in water. They have fins, scales and gills.

These animals are born live. They breathe with their lungs.

These animals lay eggs and breathe with their lungs. Some of these animals have legs and some have no legs.

These animals lay eggs and breathe with their lungs. They have feathers.

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4th Grade Science

Vertebrates and Invertebrates

Term	Definition
Amphibians	These animals lay eggs and breathe through their gills and moist skin.
Fish	These animals lay eggs and live in water. They have fins, scales and gills.
Mammals	These animals are born live. They breathe with their lungs.
Reptiles	These animals lay eggs and breathe with their lungs. Some of these animals have legs and some have no legs.
Birds	These animals lay eggs and breathe with their lungs. They have feathers.