what is beak of a bird made of?
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Answer:
Your fingernails and bird bills have something in common: They both consist of a protein called keratin. The keratin layer over beak bone gives bills their glossy appearance. As the keratin wears down with use, a new layer forms, so the beak stays sharp and sleek.
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1
Explanation:
Beaks are made of bone and keratin. Keratin, which is a component of human fingernails and hair, grows continuously in the beaks of birds.
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