jessakaCasRamonson
jessakaCasRamonson jessakaCasRamonson
  • 15-06-2016
  • Biology
contestada

One adaptation that is unique to marine mammals is they

can slow their heart beat down.

are warm-blooded.

breathe air through their lungs.

nurse their young.

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oopsydaisy
oopsydaisy oopsydaisy
  • 25-06-2016
Out of the choices given, one adaptation that is unique to marine mammals is they can slow their own heartbeat down. 
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