In Comparing the Kidneys of Marine and Freshwater Fish Which

Multiple Choice

In comparing the kidneys of marine and freshwater fish which of the following is not true?

A) Marine fish drink greater quantities of water.
B) The flow of the filtrate is faster in marine fish.
C) Freshwater fish fluids have a greater osmotic concentration.
D) Marine fish excrete many of the divalent cations through the anus.
E) The urine is less concentrated in freshwater fish.