Bob was completely bald on the top of his head by the time he was 35 years of age. Bob noticed he produced abundant sweat on his head when he exercised. He also noticed that his scalp was no longer oily. Which of the following changes account for the observations?
(1) He has fewer functional hair follicles now.
(2) He has fewer functional sebaceous glands now.
(3) He has fewer merocrine sweat glands now.
(4) He has fewer apocrine sweat glands now.
A) 1, 2, 3, 4
B) 1, 2, 3
C) 1, 2, 4
D) 1, 3, 4
E) 1, 2

Question

Quizplus · Accepted Answer

Bob's observations can be explained by having fewer functional hair follicles (leading to baldness) and fewer functional sebaceous glands (leading to a less oily scalp). The production of abundant sweat suggests that his merocrine sweat glands are still active, and apocrine sweat glands, which are mainly located in the armpit and groin area, would not significantly affect the observations related to his scalp.

Bob Was Completely Bald on the Top of His Head