Mention the function of the Ureters in frog.
The ureters in frog emerge from the kidneys and perform important functions in the excretory system. In male frogs, the ureters act as urinogenital ducts which open into the cloaca. They carry both urine and sperms to the exterior through the cloaca.
In female frogs, the ureters and oviduct open separately into the cloaca. The ureters transport excretory waste from the kidneys to the cloaca for elimination. Thus, ureters serve as passages for the elimination of nitrogenous wastes from the body.
Explanation
The textbook clearly states that two ureters emerge from the kidneys in male frogs and act as urinogenital ducts opening into the cloaca. In females, ureters and oviducts open separately into the cloaca. The function differs between sexes - in males it carries both urine and sperms (urinogenital function), while in females it primarily carries urine. The cloaca serves as a common chamber for passing faecal matter, urine and sperms to the exterior.