Classification of Living Things: 5 Vertebrate Groups | Classification

The animal kingdom includes vertebrates and arthropods. Vertebrates are animals with backbones, i.e., they have a vertebral column. The subphylum  vertebrata comprises the major part of phylum chordata which includes mammals, reptiles, fishes, amphibians, birds.

BE4U tips: MR FAB (Mammals, Reptiles, Fishes, Amphibians, Birds)

Mammals: 

•        Hair
•         Four chambered heart
•         Placenta,
•         Mammary gland
•         Different types of teeth

Reptiles:

•         Presence of epidermal scales, which are modified in some to form shields or plates . 
•         Lay soft shelled eggs on land

Fish (Pisces):

•        Streamlined body
•        Presence of scales
•        Paired fins
•        Lay eggs with no shells in water

Amphibians:

•         Presence of smooth skin
•         Heart is three chambered
•         Lay eggs with no shells in water

Birds (Aves):

•        Presence of feathers, wings, beak
•        4 chambered heart
•        Lay eggs with hard shells