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
B. 1, 2, 4
C. 1, 3, 4
D. 1, 2
E. 1, 2, 3, 4
Answer: D
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A) Increasing the lengths of fatty acid chains B) Decreasing the number of double bonds in the fatty acids C) Decreasing the phosphatidylcholine to phosphatidylethanolamine ratio D) Decreasing the cholesterol content Fill in the blank with the correct answer.
Air passes through the parts of the pharynx in what order?
A. The laryngopharynx - nasopharynx - the oropharynx B. The nasopharynx - the oropharynx - the laryngopharynx C. The oropharynx - the nasopharynx - the laryngopharynx D. None of these are correct.
The structure separating the surface of an oocyte from granulosa cells is called the:
a. Antrum b. Corpus albicans c. Corpus luteum d. Glassy membrane e. Zona pellucida
In ________, antibodies attack the neuromuscular junction.
A. systemic lupus erythematosus B. myasthenia gravis C. rheumatoid arthritis D. multiple sclerosis