Question

3. Explain the features that help birds fly.​

Answer 1

Answer:

Physical features

lightweight, smooth feathers – this reduces the forces of weight and drag. a beak, instead of heavy, bony jaws and teeth – this reduces the force of weight. an enlarged breastbone called a sternum for flight muscle attachment – this helps with the force of thrust.

Answer 2

Answer:

feathers

Explanation:

because it have wind type of walls

I think so and it also have at that place oil glands

hope it is helpful

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