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Lungs are protected laterally by , ventrally by and dorsally by .
(a)sternum, ribs, vertebral column
(b)vertebral column, ribs, sternum
(c)ribs, sternum, vertebral column
(d)clavicle, ribs, sternum
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Important Questions on Human Respiration
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All living animals require _______ to perform different activities.
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Respiration is a _____ process.
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During respiration, energy is released in a step-wise process because of
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Respiration involves:
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Blood transports gases from
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In a single-celled organism, exchange of gases occurs directly through
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The size of single-celled organism is limited by:
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In Sponges and Jellyfish, gaseous exchange takes place
