Question

All birds have strong chest muscles. Give reason for the following

Answer 1

Answer:

they have stong chest and muscle because they stong muscle protect them from their internal organs because birds have week organs for example their bone they are also hollow

Answer 2

All birds can walk on the ground, some can swim, and most of them can fly. The bodies of most birds are well-suited for flying.  

They have light and hollow bones, and the bones of the hind limbs are used for walking and perching.

The wings that we see are the bony parts of the forelimbs.

A bird has strong shoulder bones, and a large breastbone. This bone controls the muscles of flight in the body.