Desert animals need to concentrate urine. What structural changes in the kidney would be associated with a kidney that is exceptionally good at concentrating urine? Check all that would apply.

The correct answer for the question that is being presented above is this one: "C.) More juxtamedullary nephrons."

Here are the following choices:

A.) Longer loop of Henle

B.) Longer collecting duct

C.) More juxtamedullary nephrons

D.) Longer proximal and dist