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AVprozaik [17]
3 years ago
15

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

Biology
2 answers:
Archy [21]3 years ago
7 0
It makes the bird lighter, therefore it can fly and glide in the air.
horrorfan [7]3 years ago
5 0
It is lighter so it goes faster

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