Demosponge members can be easily distinguished from Hexactinellid members because they do not have a 6-wire spicule. They have a leuconoid structure with a folded choanoderm.
What are the characteristics of demosponge?
They are sponges with a soft body that is made of calcium carbonate, either aragonite or calcite, and often covers a huge skeleton. They are mainly leuconoids in structure. Their "skeleton" is made up of spicules consisting of protein spongin, mineral silica, or both fibers.
Which spicule class has a spicule?
Silica sponges form a major group of sponges of the phylum Demosponge and Hexactinellid. They are characterized by spicules made from silicon dioxide, unlike calcareous sponge.
Which animal has a spicule?
Sponge spicules are structural elements found in most sponges. The spicules are made of calcium carbonate or silica.
Does the spicule have a spicule?
The sponge lacks true tissue, has no body symmetry, and is stemless. Types are categorized based on the presence and composition of spicules.
Below you will find two helpful answers on a similar topic. 👇
What is your favorite animal as a pet?How do demosponges support other organisms?
