Sebaceous glands secrete an oily substance called _______ that oils the hair, lubricates the surface of the skin, and helps prevent water loss.
A) melanin
B) keratin
C) vitamin D
D) sebum
Correct Answer:
Verified
Q30: _ is largely responsible for the mechanical
Q31: The inner layer of the skin is
Q32: The distribution of fat in the _
Q33: Fill in the correct labels for the
Q34: Fill in the correct labels for the
Q36: The subcutaneous layer consists of _ connective
Q37: Fill in the correct labels for the
Q38: The hair root, together with its epithelial
Q39: _ is a tough waterproofing protein which
Q40: The _ is the deepest sublayer of
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