Invertibrate

An animal without a backbone.

Vertibrate

An animal with a backbone.

Amphibians

Begin life in water, but when

adults, they live on land.

Fish

Have scales and live in water their entire life.

Birds

Have feathers and beaks.

Reptiles

Have scaley skin, and most

lay their eggs on land.

Mammals

Have hair or fur and produce

milk for their young.