How many primary oocytes does a female have by the onset of puberty?
A. 2 million
B. 1,000
C. 400,000
D. 1 million
E. 500,000
Answer: C
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Sudoriferous (sweat) glands are categorized as two distinct types. Which of the following are the two types of sweat glands?
A) sebaceous and merocrine B) mammary and ceruminous C) eccrine and apocrine D) holocrine and mammary
Nerve fibers in the skin are found in which of the following layers?
A) reticular layer B) epidermis C) papillary layer D) All of the answers are correct. E) None of the answers are correct.
Answer the following questions true (T) or false (F)
1. Hydrogen ion secretion leads to bicarbonate ions reabsorption in order to maintain proper blood pH balance. 2. Since the thin descending limb of the nephron loop is permeable to water, and not very permeable to solutes, the concentration of the filtrate will increase as it reaches the bottom of the loop. 3. The juxtamedullary apparatus acts as a special vascular system called the countercurrent exchanger.
Molecules that do not readily dissolve in water are called
A) hydrophobic. B) hydrophilic. C) electrolytes. D) isophilic. E) isophobic.