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Question
In which of the following sponges, the pore canals open through their porocytes?
In which of the following sponges, the pore canals open through their porocytes?
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Solution
The correct option is B Leucosolenia
In Leucosolenia, ascon type of canal system is present. It is the simplest type of canal system. Ostia are present on the surface of the body and is connected to the spongocoel, which is lined by flagellated choanocyte cells. Spongocoel opens to the outside through the osculum, which is located at the distal free end of the sponge body. In most sponges, ostia are controlled by the tube like porocytes. Thus, the correct answer is option B.
In Leucosolenia, ascon type of canal system is present. It is the simplest type of canal system. Ostia are present on the surface of the body and is connected to the spongocoel, which is lined by flagellated choanocyte cells. Spongocoel opens to the outside through the osculum, which is located at the distal free end of the sponge body. In most sponges, ostia are controlled by the tube like porocytes. Thus, the correct answer is option B.
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