mers8ykgujkissa mers8ykgujkissa
  • 04-05-2017
  • Biology
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High-flying birds are able to obtain enough oxygen even when the air is very thin because

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noahwallace60
noahwallace60 noahwallace60
  • 04-05-2017
they are able to obtain enough oxygen because they have more efficient lungs than other vertebrates.
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