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While spelunking, you have discovered a new species deep inside the cave. This animal does not have easy access to water. It has a dense coat of fur, a four-chambered heart, and a closed circulatory system.
-Which excretory system modification do you expect to find?
A)absent juxtamedullary nephron
B)short loop of Henle, excreting dilute urine
C)long loop of Henle extending deep into the medulla
D)extensive capillary network on the metanephridia
E)very long flame bulbs in the protonephridia

Question

Quizplus · Accepted Answer

Since the animal does not have easy access to water, it needs to conserve as much water as possible. This is most efficiently achieved by a long loop of Henle that extends deep into the medulla, creating a concentration gradient that allows for the production of very concentrated urine.

Use the Following Information to Answer the Next Few Questions