Seudónimo Seudónimo
  • 04-04-2017
  • Chemistry
contestada

how might pockets of air in a birds bones allow it to fly ?

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huntermike
huntermike huntermike
  • 04-04-2017
less weight helps them fly easier.(^~^)/)

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martinez789
martinez789 martinez789
  • 04-04-2017
less weight helps them fly easier.
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