BIRD
FISH
REPTILE
MAMMAL
AMPHIBIAN
1. Its body is covered with moist and slimy skin.
2.
Its bones are lightweight and hollow. It has feathers.
3.
Its skeleton is either cartilaginous or bony. Its body is protected with scales
4. Its body is covered with dry skin and scales.
5. It nourishes its young with milk from the mammary glands.​