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The region of lung through which blood vessels, nerves enter and exit is

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Important Questions on B: Breathing and Respiration

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Vertebrate lungs arises from
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Open circulatory system does not participate in the transport of O2 in
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Which of the following is a part of conducting zone in respiratory system?
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Nasal cavity and oral cavity are separated by
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Nasopharynx receives these openings
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A person suffers punctures in his chest cavity in an accident, without any damage to the lungs, its effect could be:
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Cardiac notch is present in
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The oxy-haemoglobin curve shifts right in case of: