​in kangaroo rats, functions to conserve water

A) ​nephridium
B) ​Malpighian tubules
C) ​kidneys

Kangaroo rats live in a desert environment where water conservation is critical. Their kidneys are highly specialized to reabsorb water and produce highly concentrated urine, which allows them to survive without drinking water for long periods of time. Nephridia and Malpighian tubules are excretory structures found in invertebrates and insects, respectively, and are not present in kangaroo rats.