Question

The Bidder’s canal in frog helps to pass out
A. Ova
B. Sperms
C. Both A and B
D. None of the above

Answer 1

Hint: Morphology refers to the study of externally visible features. Anatomy refers to the study of the morphology of internal organs in animals. Frogs can live on land and in freshwater and belong to class Amphibia of phylum Chordata. The most common species of frog is Rana tigrina in India. Frogs exhibit sexual dimorphism.

Complete answer:
A. Ova: The female reproductive organs include a pair of ovaries. The ovaries are present near the kidneys and there is no functional connection with the kidneys. Fertilization is external and takes place in water.
B. Sperms: Male reproductive organs consist of a pair of yellowish ovoid testes that are found adhered to the upper part of kidneys by a double fold of peritoneum called mesorchium. Vasa efferentia having in numbers that arise from testes. They enter the kidneys on their side and enter Bidder’s canal.
C. Both A and B: Option an Ova is not suitable for this question therefore, this option is not suitable for this question.
So, the correct answer is “Option B”.

Note:
Male frogs can be distinguished by the presence of sound-producing vocal sacs and also a copulatory pad on the first digit of the forelimbs. But, the female frogs don't have one. Frogs have well-developed male and female reproductive systems. The male reproductive organ is the sperm and the female reproductive organ is the ovary. Development involves a larval stage called Tadpole. Tadpole undergoes metamorphosis to form an adult. Frogs are helpful for mankind because they eat insects and protect the crop.