# 5 Phylum Vertebrates

Vertebrates are animals with backbones. They are divided into 5 groups called classes: '

Fish, Amphibians, Reptiles, Birds and Mammals.

















Details of each group are given in the table below. You only need to be able to describe visible external features, but other details can be helpful.

1. Fish

Scales- Fins - Eyes & lateral Lines - Gills.

2. Amphibians 

Moist scaleless skin - Eye & Ears - 4 limbs.

3. Reptiles 

Dry scaly skin - Eyes & Ears - 4 legs (apart from snakes).

4. Birds 

Beak - Feathers - Scales on legs - Wings - 2 legs.

5. Mammals

Fur - 4 limbs.