LJMerimaid
LJMerimaid LJMerimaid
  • 23-05-2017
  • Biology
contestada

Plz help and I promise it's the last one for tonight

Plz help and I promise its the last one for tonight class=

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Sashal777
Sashal777 Sashal777
  • 23-05-2017
I think its external because birds are always outside. They develop most of their life functions and knowings outside.
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