Ultimate Trivia Quiz On Super Class Tetrapoda Class Aves

The age of Birds is the Jurassic Period of the Mesozoic Era and the number of species about 9000. They are homeothermic or endothermal or warm-blooded. Their body temperature is generally 42 degrees Celcius in some cases. Their body is streamlined with head, long neck, trunk, and short stumpy tail. The skin of Aves is dry, devoid of glands except for oil or preen gland present at the root of the short tail. It is used for dressing and waterproofing of feathers. The exoskeleton is in the form of feathers, scales, claws, and a toothless beak. All are epidermal in origin. Endoskeleton is bony and the skull is Monocondylic. Skull bones are fused and vertebrae of trunk and tail fuse to form synsacrum. Vertebrae are heterocoelous type and tail vertebrae fused to form pygostyle. So, take this quiz and increase your knowledge about class Aves.