Mebnurdelissashle Mebnurdelissashle
  • 09-02-2017
  • Biology
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How has the avian lung adapted to the metabolic demands of flight?

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OfficialPyrocynical
OfficialPyrocynical OfficialPyrocynical
  • 09-02-2017
the portal systems of mammals, where two capillary beds occur sequentially, without passage of blood through a pumping chamber
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