Question

how many hollow bones present in the bird ?​

Answer 1

Answer:

A bird's bone is mostly hollow,with no marrow.

struts,called trabeculae,strengthen bones so

that they do not break in flight. In some bones,the

hollow cavities contain extensions of the air sacs

from the lungs. Extensive airsacs enable the bird to

get oxygen it needs to fly quickly and easily.

Answer 2

Answer:

here is your answer.

Explanation:

A bird's bones are mostly hollow, with no marrow. Struts, called trabeculae, strengthen the bones so that they do not break in flight. In some bones, the hollow cavities contain extensions of the air sacs from the lungs. Extensive air sacs enable the bird to get the oxygen it needs to fly quickly and easily.

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