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Which feature enables the mammalian kidn...

Which feature enables the mammalian kidney to concentrate urine in the medullary region?

A

Rapid removal of sodium ions from medullary tissues.

B

Maintaining a high osmotic pressure in the tissues between the tubules.

C

High oxidative metabolism of medullary cells.

D

Rapid flow of blood through the medulla.

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The correct Answer is:
B
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