Question

4. Discuss the special features present in birds that help them to fly.
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Answer 1

their bones are hollow and they use their wing to fly and their stremlined body

Answer 2

Answer:

Explanation:

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 help in flight.