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QUESTION

We know that birds have feathers. Humans do not. You may be surprised to learn about the tissue that makes up feathers. Research feathers to find out...

We know that birds have feathers. Humans do not. You may be surprised to learn about the tissue that makes up feathers. Research feathers to find out what they are made of. Discuss what makes feathers and how this same substance is found in the human body. 

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