Scypha (Sycon) belongs to (1) Calcarea (2) Hexactinellide (3) Demospongiae (4) Hyalospongiae

Answer: (1)

Sycon or Scypha is a typical tiny, colonial sponge. Sycon is a common marine sponge. They’re sedentary. It is attached to shells, rocks etc in shallow seawater. Sycon belongs to the class called Calcarea, which has a radially symmetrical body shaped vase. The system of channels is of syconoid form. Reproduction is asexual as well as sexual in nature. Since the micrometres have flagella, the larval stage is called amphiblastula and is a free-swimming stage until it settles down and undergoes gastrulation.

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