Question

Give four characteristics which help the birds to fly translate in malayalam

Answer 1

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

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

wings – these enable the force of lift.