Question

what are the features in the body of a bird which help it to fly

Answer 1

The features in bird which help it to fly are-
★Its forelimbs are modified into wings.
★light and hollow bones due to which it is able to create required upthrust due to less weight.
★It has lightweight beak instead of heavy jaws and teeth, reducing its wieght.
★It has an enlarged breastbone called a sternum for flight muscle attachment , this helps her to create more force for upthrust.

Answer 2

1)lightweight, smooth feathers – this reduces the forces of weight and drag

2)a beak, instead of heavy, bony jaws and teeth – this reduces the force of weight

3)an enlarged breastbone called a sternum for flight muscle attachment – this helps with the force of thrust

4)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

5)a rigid skeleton to provide firm attachments for powerful flight muscles – this helps with the force of thrust

6)a streamlined body – this helps reduce the force of dragwings – these enable the force of lift.