noemitrevino38 noemitrevino38
  • 24-01-2019
  • Biology
contestada

The bones structure of the baleen

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reeseebaby89
reeseebaby89 reeseebaby89
  • 29-01-2019
Baleen is similar to bristles and consists of keratin, the same substance found in human fingernails and hair.
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