In Most Aquatic Animals, the Organ Whose Function is Equivalent

Question

In most aquatic animals, the organ whose function is equivalent to the mammalian kidney is the
A) kidney.
B) gill.
C) mantle.
D) aorta.

Accepted Answer

In most aquatic animals, gills are responsible for excreting waste products like ammonia, which is a function similar to that of the mammalian kidney.