sarahhadley116 sarahhadley116
  • 19-03-2019
  • Health
contestada

A barrier to pathogens is provided by A. melanin. B. collagen. C. sebum. D. keratin.

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flamingosynagog
flamingosynagog flamingosynagog
  • 19-03-2019

Bro it’s collagen that shît keeps out the little bros that want to eat you

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