28. The skeleton secreting cells in poriferans are known as A.Scleroblasts B.Collenocytes C.Archaeocytes D.Pinacocytes
Answer: Option A Solution: The spicules are secreted by specialized mesenchyme cells known as scleroblasts. Scleroblast secreting a calcareous spicule is called calcoblast while that producing a siliceous spicule is called silicoblast.
