Question

Give at least four features present in birds which enable them to fly

Answer 1

The four features are-

1.Streamlined shape of the body.
2.Bones are hollow and so the body is light weighted.
3.They are chest muscles which are strong and are adapted as wings that help it to fly.
4.The feathers that cover that body are very light and they also gelp in flight.

Answer 2

Most birds are well adapted for flight. Their

bones are hollowed out to make them light, their bodies are stream-lined for

decreased air resistance. Their forelimbs have evolved into feathered wings and

their breast bone is enlarged for attachment of strong muscles used in flying.

Their respiratory systems are also larger and more efficient than that of their

mammal counterparts, as flying requires greater amounts of energy than running

or walking.