Following are given four statements (i) - (iv) related to frog. Read t...
In female frog, ovaries are irregular shaped, tubulated structures attached to the kidneys with the help a membrane called mesnverium The ovaries has no internal connection with kidneys. In male frog, there are present 10-12 fine tubes called vasa efferentia that connect the testes to the kidneys on each side. They open into the anterior part of Bidder's canal. In frog, there are ten percent of canial nerves. RBCs are nucleated and contained the coloured pigment namely himoglobin.
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Following are given four statements (i) - (iv) related to frog. Read t...
Statement (i): The ovaries are situated near the kidney and there is no functional connection with kidneys.
This statement is correct. In female frogs, the ovaries are located near the kidneys. However, there is no direct functional connection between the ovaries and the kidneys. The kidneys are responsible for excretion and filtration of waste products, while the ovaries are responsible for the production of eggs.
Statement (ii): Vasa efferentia enter the kidneys on their side and open into Bidders canal.
This statement is correct. Vasa efferentia are a series of ducts that connect the testes to the kidneys in male frogs. These ducts enter the kidneys on their side and open into a structure called Bidders canal. Bidders canal is a tubular structure that receives the sperm from the vasa efferentia and transports it to the cloaca for eventual release during mating.
Statement (iii): There are twelve pairs of cranial nerves arising from the brain.
This statement is incorrect. Frogs have ten pairs of cranial nerves arising from the brain, not twelve. These cranial nerves are responsible for various functions such as sensory perception, motor control, and coordination of different parts of the body.
Statement (iv): RBCs are enucleated and contain red-colored pigment namely hemoglobin.
This statement is correct. Red Blood Cells (RBCs) in frogs, like in most other vertebrates, are enucleated, which means they do not contain a nucleus. This allows more space for the oxygen-carrying pigment called hemoglobin. Hemoglobin gives the RBCs their red color and is responsible for carrying oxygen from the lungs or gills to the body tissues.
Therefore, the correct statements are (i) The ovaries are situated near the kidney and there is no functional connection with kidneys and (ii) Vasa efferentia enter the kidneys on their side and open into Bidders canal. The correct answer is option B.
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