Refer to the figure of the countercurrent multiplier mechanism in the mammalian kidney. 
Based on the figure, which statement is true?
A) Water leaves the renal tubule by osmosis between points 5 and 6.
B) Reabsorption of sodium chloride occurs at point 3.
C) Aquaporins are especially scarce at point 1.
D) Sodium chloride is actively transported into the tubule at point 4.
E) Aquaporins are especially numerous at point 4.
Correct Answer:
Verified
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