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Question

Passage from incurrent to radial canals is formed by

A
Choanocytes
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B
Pinacocytes
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C
Archaeocytes
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D
Prosopyles
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Solution

The correct option is D Prosopyles
In between the two incurrent canals, a radial canal is present. The radial canal is lined with choanocyte or flagellated cells. Hence, these chambers are called as flagellated chambers.
Archaeocytes are the amoeboid cells found in sponges. These are pluripotent and has the potential to form various types of cell.
Pinacocytes are the cells which line the outer wall of the cavity of the sponges.
Porocytes are tubular cells that make up the pores into the sponge body through the mesophyll. Porocyte forms a passage called as prosopyle for the water current. Water enters radial canals from the incurrent canals through prosopyles.
Hence, the correct answer is option D.

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