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Biology, 26.02.2021 18:50 katiemaley19

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
crops in birds and teeth in mammals
mammals

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Which structures are most similar in birds and mammals based on their functions? air sacs in birds...
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