Name the chordate class of flying worm blooded animals in which teeth are absent.

Name the class in which

(a) Syrinx is present; (b) Pneumatic bones are present.

Name the national bird and national animal of India.

Name the class in which:

(a) digits end up in nail and claws;

(b) hair are present as exoskeleton.

How many cervical vertebrae are found in mammals?