Question

Reproductive cells in sponges are formed from

• A. Archaeocytes and choanocytes
• B. Scleroblasts
• C. Thesocytes
• D. Pinacocytes

Answer 1

The correct option is A Archaeocytes and choanocytes

Poriferans are diploblastic and the cells are arranged in two layers. Choanocytes are also called as the collar cells maintain the water current in the sponges. They have a central flagellum with a tuft of microvilli. Sponges feed on minute organisms and small organic particles, which enter the body through water current and are ingested by the choanocytes.

Amoebocytes are amoeba-like cells scattered in the sponges. Amoebocytes are also called as archaeocytes, named for the fact that they move throughout the mesohyl in an amoeba-like fashion. They store, digest and transports food, excrete wastes, secrete skeleton and also may give rise to buds in asexual reproduction.

Hence the correct option is A.