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Biology 7 Online
OpenStudy (anonymous):

some outer covering that keeps animals warm are fur,wool,and________

OpenStudy (anonymous):

@welshfella

OpenStudy (anonymous):

@mathstudent55 @leahhhmorgannn @adilalvi @Calvin3

OpenStudy (anonymous):

skin haha

OpenStudy (anonymous):

Feather.

OpenStudy (anonymous):

Both dermal layers.

OpenStudy (rabya!):

Blubber layer , it helps cold environment animals stay warm like polar bear .

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