Question

UNIQUE characteristics for Class Aves

Answer 1

Ans- Unipue characteristics for class Aves-

1. They are highly evolved vertebrates.

2. Aves (birds) are modified for aerial mode of life.

3. Birds are warm blooded animal, body is covered by feathers.

4. Body of the birds are divided into head, neck trunck and tail.

5. Birds are feathered, bipedal and air breathing.

6. Skin without glands, only cutaneous gland is preen gland at tail base.

7. The large and most powerful muscle is pectoralis major.

8. Bones are pneumatic or hollow and absence of bone marrow.

9. Skull is monocondylic.

10. It consist heart is four chambered.

11. A sound box or syrinx produce voice.