Nails appear pink because _______.
A) they are made of keratin
B) they contain melanin
C) of underlying capillaries
D) of their carotene content
Correct Answer:
Verified
Q15: Each _ is a tiny coiled tube
Q16: Tiny bundles of _ muscles contract in
Q17: Together with its glands, hair, and nails,
Q18: The outermost layer of skin is called
Q19: _ excrete excess water and some wastes
Q21: Fill in the correct labels for the
Q22: Fill in the correct labels for the
Q23: The patterns of ridges and grooves visible
Q24: Beneath the skin is an underlying _
Q25: New epidermal cells are constantly produced in
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