13-02-2015
Biology

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birds that fly have lightweight bones some of which are hollow how might this unique body structure benefit the bird?

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Jessboss494 Jessboss494

13-02-2015

it is lighter so it goes faster

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vballgurlie07 vballgurlie07

13-02-2015

It makes the bird lighter, therefore it can fly and glide in the air.

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