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Kal6ina2jumich Kal6ina2jumich
  • 25-02-2017
  • Biology
Answered

Mammals lead more active lives than reptiles because mammals have body hair and more efficient hearts and _____.

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tiffxdtn tiffxdtn
  • 03-03-2017

The answer is "lungs"

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kittylike11
kittylike11 kittylike11
  • 11-01-2019

My answer is: Mammals lead more active lives than reptiles because mammals have body hair and more efficient hearts and lungs.

 

hope this helps!


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