Name the Class, in which organism possess lungs which are connected with air-sacs
Answers
Answered by
1
Explanation:
Gas exchange in the lungs occurs in millions of small air sacs called alveoli in mammals and reptiles, but atria in birds. These microscopic air sacs have a very rich blood supply, thus bringing the air into close contact with the blood.
Answered by
0
Answer:
i think it is trachea
Similar questions