Science, asked by Anonymous, 4 months ago

aquatic animals have air sac ​

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Answered by nehabhosale454
24

Answer:

Air sac, any of the air-filled extensions of the breathing apparatus of many animals. Air sacs are found as tiny sacs off the larger breathing tubes (tracheae) of insects, as extensions of the lungs in birds, and as end organs in the lungs of certain other vertebrates.

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Answered by renuthakur3333
2

Answer:

Mammals. To provide the gas exchange necessary to support the elevated metabolic rate of mammals, mammalian lungs are subdivided internally. The repetitive subdivisions of the lung airways provide gas to the tiny alveoli (gas sacs) that form the functional gas-exchange surface area of the lungs.

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