Ch. 44 - Osmoregulation and Excretion
Chapter 44, Problem 1
Unlike an earthworm's metanephridia, a mammalian nephron a. is intimately associated with a capillary network. b. functions in both osmoregulation and excretion. c. receives filtrate from blood instead of coelomic fluid. d. has a transport epithelium.
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Related Practice
Textbook Question
Which process in the nephron is least selective? a. filtration b. reabsorption c. active transport d. secretion
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Which of the following animals generally has the lowest volume of urine production? a. vampire bat b. salmon in fresh water c. marine bony fish d. freshwater flatworm
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Textbook Question
The high osmolarity of the renal medulla is maintained by all of the following except
a. active transport of salt from the upper region of the ascending limb.
b. the spatial arrangement of juxtamedullary nephrons.
c. diffusion of urea from the collecting duct.
d. diffusion of salt from the descending limb of the loop of Henle.
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