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Author Question: Fingernails and toenails are composed of a hard protein substance called ________. Fill in the ... (Read 76 times)

nelaaney

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on: Jun 26, 2018
Fingernails and toenails are composed of a hard protein substance called ________.
 
  Fill in the blank(s) with correct word

Question 2

The skin is essentially composed of two layers, the ________ and the dermis.
 
  Fill in the blank(s) with correct word


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BAOCHAU2803

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Reply #1 on: Jun 26, 2018
Answer to Question 1

keratin

Answer to Question 2

epidermis


nelaaney

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Reply 2 on: Jun 26, 2018
Gracias!

vickybb89

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Reply 3 on: Yesterday
Wow, this really help

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