Perspiration that is produced by apocrine sweat glands
A) is more than 99 percent water.
B) contains electrolytes and waste products, such as urea.
C) helps to cool the surface of the skin when it evaporates.
D) is limited to the hair follicles of the axilla, nipples, and groin.
E) contains astringent compounds that contract the skin and its sweat gland pores.
D) is limited to the hair follicles of the axilla, nipples, and groin.
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Indicate whether the statement is true or false
The spongy urethra
A. is found only in males. B. is lined proximally by pseudostratified columnar epithelium and distally by stratified squamous epithelium. C. is encased within the corpus spongiosum. D. is the longest portion of the urethra. E. All of the choices are correct.
Where are most nephrons located?
A) renal pelvis B) calyces C) renal medulla D) renal pyramids E) renal cortex
Which of the following hormones increases production of red blood cells?
A) cortisol B) erythropoietin C) thymosin D) aldosterone E) atrial natriuretic peptide