CLASSIFYING ANIMALS

CLASSIFYING ANIMALS

Classifying Animals

Vertebrates: Animals with backbone.

Invertebrates: Animals without backbone.

Vertebrates

Fish:

Covered with scales.

Live in water.

Gills.

Cold-blooded.

Lay eggs.

Vertebrates

Amphibians:

Covered with smooth skin.

Live in water and land.

Lungs or gills.

Cold-blooded.

Hatch from eggs.

Vertebrates

Reptiles:

Covered with scales.

Live on land.

Lungs.

Cold-blooded.

Lay eggs.

Vertebrates

Birds:

Covered with feathers.

Live on land.

Lungs.

Warm-blooded.

Lay eggs.

Vertebrates

Mammals:

Hair or fur.

Lungs.

Warm-blooded.

They make milk to feed their young.

Invertebrates

Most animals on Earth.

Earthworms have soft bodies made of segments.

Invertebrates

Arthropods:

Largest group.

Their legs and bodies are divides into sections.

Covered by a hard, lightweight outer skin (exoskeleton).