niehausk2196 niehausk2196
  • 01-12-2018
  • Biology
contestada

the hollow bones of birds, which keep birds lightweight foe flying,is an example of what

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natekotterman
natekotterman natekotterman
  • 01-12-2018

An "adaptation." It's the natural way that birds of flight adapt to their needs or environment which makes them more efficient.

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