Question

In Poriferans, the spongocoel is lined with flagellated cells called

• A. Mesenchymal cells
• B. Ostia
• C. Oscula
• D. Choanocytes

Answer 1

The correct option is D Choanocytes

Spongocoel is a large central cavity in the sponges. Water enters through the numerous ostium in the cavity and exit by a central pore known as osculum. Choanocytes are the flagellated cells which line the spongocoel. It helps to set up water current and helps in intake of food.

So, the correct answer is option D.