HardZoologyBiotechnology & Its Applications
+4 / -1
The concentration of human urine compared to the initial filtrate is approximately:
A
2 times
B
3 times
C
4 times
D
6 times
Explanation
Due to the efficient countercurrent mechanism, humans can excrete urine that is nearly four times more concentrated than the initial glomerular filtrate.
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At which point is the osmolarity of the filtrate highest?
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