Question

a human hair viewed under a compound microscope ______. a. has scales that point from the end of the hair farthest from the scalp to the end closest to the scalp b. shows curved scales that overlap the hair closest to the scalp c. can have uneven color distribution because it contains larger pigment granules within the cortex d. will have a medulla that is doubled containing pigment granules

Explanation:

When a human hair is viewed under a compound microscope, it can show uneven color distribution. This is due to the presence of larger pigment granules within the cortex of the hair. Hair scales point from the scalp - end to the tip (not the other way around as in option a). The description in option b about curved scales overlapping the hair closest to the scalp is not a typical observation. And a double - medulla containing pigment granules is not a common characteristic of human hair under a compound microscope.

Answer:

C. can have uneven color distribution because it contains larger pigment granules within the cortex