In the respiratory system of pigeon, which type of air sacs is unpaired:

(a) Inter clavicular type
(b) cervical type
(c) Anterior thoracic
(d) Posterior thoracic

Anurag Mishra Professor Asked on 28th May 2016 in Biology.
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    Answer: (a) Inter clavicular type

    Anurag Mishra Professor Answered on 30th May 2016.
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