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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).