Question

Which of the following helps the birds in flying ?​

Answer 1

Answer:

light bones – a bird's bones are basically hollow with air sacs and thin, tiny cross pieces to make bones stronger – this reduces the force of weight. a rigid skeleton to provide firm attachments for powerful flight muscles – this helps with the force of thrust. a streamlined body – this helps reduce the force of drag.

Answer 2

Answer:

light bones – a bird's bones are basically hollow with air sacs and thin, tiny cross pieces to make bones stronger – this reduces the force of weight. a rigid skeleton to provide firm attachments for powerful flight muscles – this helps with the force of thrust. a streamlined body – this helps reduce the force of drag.

okay!!!!!

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