In birds, the lungs are

In human beings the left lung consists of _____lobes and the right lung consist of _____lobes.

Movement of air into and out of the lungs is carried out by a creating____ between the lungs and atmosphere.

Movement of air into and out of the lungs is carried out by a creating____ between the lungs and atmosphere.

Reptiles, birds and_____ have lungs for the exchange of gases.

What is peculair about the lungs of the birds?

[A] : In elastic lungs of birds are supplemented by remarkable system of air sacs . [R] : Air sacs function in storage of food .

[A] : In elastic lungs of birds are supplemented by remarkable system of air sacs . [R] : Air sacs function in storage of food .

[A] : In elastic lungs of birds are supplemented by remarkable system of air sacs . [R] : Air sacs function in storage of food .