Which of the following is NOT correct regarding the countercurrent multiplier mechanism? Sodium chloride is actively transported out of the descending limb of the nephron loop A medullary sodium chloride gradient is necessary for the mechanism to function The ascending limb of the nephron loop is not permeable to water The process results in concentration of the urine. 2 pts Question 56 When environmental conditions are very hot and dry, the most effective method of body temperature control would involve: evaporation radiation conduction convection
