Question

give characteristics of class aves
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Answer 1

The general characteristics of class Aves are:

1.spindle shaped body with four divisions - head, neck, trunk & tail.

2.forelimbs modified for flying.

3.epidermal covering of feathers and leg scales.

4.presence of beak or bill.

5.fully ossified skeleton with air cavities.

well developed nervous system.

6. 4 chambered heart.

Answer 2

Answer :

Class - Aves :

• They have presence of feathers.
• Most of the organisms in this class can fly.
• They possess beaks.
• They have forelimbs modified as wings.
• The hindlimbs are made of scales and are used for walking.
• Their skin is dry without glands.
• They have presence of oil gland at the base of the tail.
• They have bony endoskeleton.
• Their bones are hollow with air cavities.
• Their digestive system have additional chambers called the crop and gizzard.
• They have four chambered heart.
• They are warm blooded animals or homoiothermous.
• The process of respiration occurs through lungs.
• The sexes are separate.
• The process of fertilization is internal.
• They are oviparous.
• The development process is direct.
• Ex : Columba, Pavo, etc.