Which of the following types of neurons has a single process extending from the cell body which later divides a short distance away into central and peripheral processes?
A) pseudo-unipolar
B) bipolar
C) multipolar
D) None of the above.
Answer: A) pseudo-unipolar
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Which of the following statements indicates the way in which the body's natural defenses protect the skin from the effects of UV damage?
A) The skin is protected by the synthesis of three pigments that contribute to the skin's color. B) Carotene, which accumulates in the stratum corneum and hypodermal adipose tissue, is synthesized in large amounts in the presence of sunlight. C) The skin is protected by increasing the number of epidermal dendritic cells, which help to activate the immune system. A) The skin is protected by the synthesis of three pigments that contribute to the skin's color. B) Carotene, which accumulates in the stratum corneum and hypodermal adipose tissue, is synthesized in large amounts in the presence of sunlight. C) The skin is protected by increasing the number of epidermal dendritic cells, which help to activate the immune system. D) Prolonged exposure to the sun induces melanin dispersion, which in turn acts as a natural sunscreen.
The pulmonary trunk receives blood from the right ventricle and conducts it toward the lung. The pulmonary trunk is a(n)
A. capillary. B. artery. C. vein.
Which of the following is true on the island of Mangaia?
A. Premarital sex is essentially unknown. B. Three orgasms per night are common in middle age. C. Foreplay is limited to kissing and fondling of the buttocks. D. Boys learn about cunnilingus from male experts.
Which organelle synthesizes lipids and carbohydrates?
A) nucleus B) Golgi apparatus C) mitochondria D) smooth endoplasmic reticulum E) rough endoplasmic reticulum