Question

how many air sacs in birds?​

Answer 1

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Typically there are nine air sacs within the system, however that number can range between seven and twelve, depending on the species of bird. Passeriformes possess seven air sacs, as the clavicular air sacs may interconnect or be fused with the cranial thoracic sacs.

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Answer 2

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birds have 9 air sacs in their respiratory system.

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