NEET 2017 Biology question

In case of poriferans the spongocoel is lined with flagellated cells called :

(1)Ostia
(2)Oscula
(3)ChoanocytesCorrect
(4)Mesenchymal cells

Answer: (3)

Solution

In sponges (Porifera) the spongocoel (central cavity) and the canals are lined with flagellated collar cells called choanocytes (choanoderm), whose beating flagella drive the water current through the water canal

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Question ID VK-092153