Answer :
INTRODUCTION:
Birds are describe as "Master of air".Birds exhibit less diversity due to their adaptation for aerial mode of life.They inhabit both terrestrial and aquatic environments.
These are the following reasons ,why birds are adapted to aerial mode of life:
1.Birds are endothermal or warm blooded animals.
2.Body is streamlined and compactly arranged to suit their adaptation for flights.
3.It is normally spindle shaped and light due to the presence of air sacs.
4.Forelimbs are modified as wings.
5.Hind limbs are large and bear the weight of the whole animal.
6.Body is covered by feathers.They form a part of the exoskeleton.
7.The feathers are of four types- 1.Coutour feathers
2.Filoplumes
3.Quill feathers and
4.Down feathers.
Because of the presences of air sacs and feathers, makes the birds to adapt the aerial mode of life or MASTER OF AIR.
Birds are describe as "Master of air".Birds exhibit less diversity due to their adaptation for aerial mode of life.They inhabit both terrestrial and aquatic environments.
These are the following reasons ,why birds are adapted to aerial mode of life:
1.Birds are endothermal or warm blooded animals.
2.Body is streamlined and compactly arranged to suit their adaptation for flights.
3.It is normally spindle shaped and light due to the presence of air sacs.
4.Forelimbs are modified as wings.
5.Hind limbs are large and bear the weight of the whole animal.
6.Body is covered by feathers.They form a part of the exoskeleton.
7.The feathers are of four types- 1.Coutour feathers
2.Filoplumes
3.Quill feathers and
4.Down feathers.
Because of the presences of air sacs and feathers, makes the birds to adapt the aerial mode of life or MASTER OF AIR.
Answer:
body is covered by wings they form a part of the exoskeleton because of the presence of air sacs and feathers make the birds to adapt to aerial mode of life.