jadepruitt87p3pg95 jadepruitt87p3pg95
  • 22-05-2018
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Explain how the use of the extra air sacs helps birds fly.

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EmeraldWonder
EmeraldWonder EmeraldWonder
  • 22-05-2018
It adds an extra flow of air to their lungs. An in-directional flow of air.

I hope this helps ;)
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