name the structure that help bird fly
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Answer:
Wings and feathers
Step-by-step explanation:
these muscles are quite large, making up as much as 35 % ( percent ) of birds body weight feathers help birds fly and also provide insulation and serve other purposes.
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Answer:
Flying birds have: 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.