The main osmoregulatory and excretory organ in most vertebrates is the
A) skin.
B) gill.
C) metanephridium.
D) lung.
E) kidney.

Name: The main osmoregulatory and excretory organ in most vertebrates is the A) skin. B) gill. C) metanephridium. D) lung. E) kidney.
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Question

Quizplus · Accepted Answer

The kidney is the primary organ responsible for osmoregulation and excretion in most vertebrates, filtering blood to remove waste products and regulate water and electrolyte balances.

The Main Osmoregulatory and Excretory Organ in Most Vertebrates Is