WebThe movements of flagella of choanocytes draw water into the spongocoel through the ostia. Water leaves the sponge through the osculum. Osculum is a single large opening at the top of the sponge. 2. Sycon type. The sponge wall is folded in the sycon body form. Following canals are formed by the folding of its wall: WebCorrect option is D) 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.

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WebThese radial canals are lined with flagellated choanocytes. It is the action of these choanocytes that keeps water moving through the sponge. From the radial canals, … WebJun 19, 2024 · The choanoflagellates: an overview. Considered to be amongst the precursors of the animal kingdom and share a common ancestor, the choanoflagellates … pickup mounted machine gun

28.1B: Morphology of Sponges - Biology LibreTexts

Webchoanoflagellates. Select all of the following that describe choanocytes. 1. They can trap and phagocytize food particles. 2. They are flagellated collar cells. 3. They maintain a … WebAug 15, 2016 · Choanocytes are special cells found in sponges. Choanocytes consist of a round cell body lined with microvilli around a central flagellum. Choanocytes assist with filter feeding in sponges. WebSponges constitute the phylum Porifera, and have been defined as sessile metazoans (multicelled immobile animals) that have water intake and outlet openings connected by chambers lined with choanocytes, cells with whip-like flagella. However, a few carnivorous sponges have lost these water flow systems and the choanocytes. pickup mounting tube