The hardness of a nail comes from
A) carotene.
B) collagen.
C) calcium.
D) keratin.
Correct Answer:
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Q25: The epidermis is about _ mm thick
Q26: You step out of the shower and
Q27: In areas of the skin where the
Q28: Two thieves steal jewelry, and then drop
Q29: Melanocytes transfer melanin granules to
A)mast cells.
B)nearby keratinocytes.
C)macrophages.
D)the
Q31: After a severe burn, new skin may
Q32: The subcutaneous layer is
A)made of squamous epithelium.
B)part
Q33: A nail consists of
A)dense connective tissue.
B)bone.
C)a nail
Q34: The major blood vessels that supply the
Q35: Which of the following is not a
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