Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In male frogs, the ureter is referred to as a urinogenital duct. Reason (R): In male frogs, the ureter carries both urine and spermatozoa to the cloaca. In the light of the above statements, choose the correct answer from the options given below:

Step-by-step solution

In male frogs, the ureters act as urinogenital ducts which open into the cloaca. This functional naming is due to the fact that they carry both urine from the kidneys and spermatozoa from the testes (via the vasa efferentia and Bidder's canal) to the cloaca. In contrast, female frogs have separate ureters and oviducts opening into the cloaca, so their ureters only carry urine. Therefore, both Assertion (A) and Reason (R) are true, and Reason (R) provides the correct functional explanation for the anatomical term us