Question

which features helps fly
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Answer 1

Answer:

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.

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Answer 2

$\huge\mathtt\blue{Answer }$

Following features is necessary :-

• lightweight
• smooth feathers (reduces the forces of weight and drag)