EVERYDAY SCIENCE

Detailed explanation-1: -Some spicules in the sponges consist of the layers of silicon and hence they are siliceous in nature. The sponges belong to the phylum Porifera. And hence the spicules occur in the porifera.

Detailed explanation-2: -The skeletons of sponges (Phylum Porifera) are comprised of collagen, often embedded with small siliceous structures (spicules) arranged in various forms to provide strength and flexibility.

Detailed explanation-3: -Spicules are the structural components of a sponge, or the “bricks, ” and the shapes, sizes, and composition are unique for each species. Together, you can look at these features under a microscope to make a positive identification. Spicules are composed of either Calcium or Silica.

Detailed explanation-4: -Classification of Phylum Porifera They are found in marine, shallow, and coastal water. Their skeleton is composed of calcareous spicules made of calcium carbonate.

Detailed explanation-5: -The tiny structures that form skeleton found in the sponges are known as Spicules. They provide structural support as well as protect them from other predators. Spicules are classified as megascleres, which function in support and the other one is microscleres, which function in protection and also aid in support. More items