Biology

Biology, 22.08.2019 19:30, stephaniesmile8

How do the air sacs of birds make the body lighter

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Biology, 04.07.2019 20:30, conradbeckford6813

Due to its system of nine air sacs connected to the lungs, the respiratory system of birds is arguably the most effective respiratory system of all air-breathers. upon inhalation, air first flows into posterior air sacs, then into the lungs, and then into anterior air sacs on the way to being exhaled. thus, there is one-way flow of air through the lungs, along thousands of tubules called parabronchi. if archaeopteryx had air sacs, then which of its features would have had the opposite effect on enabling archaeopteryx to fly long distances from that provided by air sacs?

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Biology, 19.07.2019 13:00, unicornsflyhigh

Which structures are most similar in birds and mammals based on their functions? air sacs in birds and rib cages in mammals air sacs in birds and mammary glands in mammals gizzards in birds and teeth in mammals crops in birds and teeth in mammals?

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Biology, 23.07.2019 21:00, tvoalicea

Due to its system of air sacs connected to the lungs, the respiratory system of birds is arguably the most effective respiratory system of all air-breathers. upon inhalation, air first flows into posterior air sacs, then into the lungs, and then into anterior air sacs on the way to being exhaled. thus, there is one-way flow of air through the lungs, along thousands of tubules called parabronchi. which type of bird is most likely to benefit from air sacs, which reduce its weight? birds, such as geese, which migrate great distances birds that chip away wood, such as woodpeckers diving birds birds that rip apart prey, such as hawks and eagles

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Physics, 20.08.2019 21:00, rickimmorgan

How do air sacs of birds make body lighter

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