Why do brids not have respiratory trouble at the time of flying at high altitude ? (1) Their lungs are very large (2) They fly inactively (3) They have extra air sacs (4) They use less oxygen

Why do brids not have respiratory trouble at the time of flying at high altitude ? (1) Their lungs are very large (2) They fly inactively (3) They have extra air sacs (4) They use less oxygen
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Answer :

They have extra air sacs
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Related questions

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The presence of air sacs is a feature of which class ?

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Air sacs are found only inn

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Last Answer : Iand II are correct

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Last Answer : (D) All (A), (B) and (C)

The partial pressure of oxygen in the alveoli of the lungs is (a) equal to that in the blood (b) more than that in the blood (c) less than that in the blood (d) less than that of carbon dioxide.

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Have you witnessed a drone fly by? Or any unusual flying object which you couldn't explain?

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Last Answer : sorry nupe. i look down.

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Description : Can people fly when using flying equipment?

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The phrase, ̳soaring gradually downwards and outwards‘ shows that the young seagulla) Failed to fly. b) Was successful in flying. c) Tried to fly but could not. d) Felt unhappy.

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