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Home Q & A Board Biology-Related Homework Help Cell Biology
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rolab97 rolab97
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6 years ago
One reason for the increase in the rate of skin cancer is
  a. increased exposure to ultraviolet radiation.
  b. water pollution.
  c. food additives.
  d. preservatives.
  e. air pollution.

Question 2

Hair is made up mostly of
  a. calcium
  b. keratinized cells.
  c. carbohydrates.
  d. fats.
  e. chitin.
Textbook 
Human Biology

Human Biology


Edition: 10th
Authors:
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oliverb1oliverb1
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6 years ago
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rolab97 Author
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6 years ago
Thanks for your help!!
zbmallo3
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This site is awesome
gage
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2 hours ago
You make an excellent tutor!
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