who does the sea sponge move exageraiting slowmoving pictures

How many families of sponges are there?Īlthough the majority of sponges live in marine habitats, one family, the Spongillidae, is found in fresh water. Spicules are rod-shaped cellular projections that make up the skeleton of sponges. Sponges are divided into these classes based primarily on the composition of their spicules and skeletal fibers. There are three classes within the phylum porifera: Calcerea, Desmospongia, and Hexactinellida. Water enters the spongocoel through hundreds of tiny pores (ostia) and exits through the larger opening (osculum). Sponges are either radially symmetrical or asymmetrical.Ī spongocoel (/ˈspɒŋɡoʊˌsiːl/), also called paragaster (or paragastric cavity), is the large, central cavity of sponges. Sponges have cellular-level organization, meaning that that their cells are specialized so that different cells perform different functions, but similar cells are not organized into tissues and bodies are a sort of loose aggregation of different kinds of cells. Most belong to the family Cladorhizidae, but a few members of the Guitarridae and Esperiopsidae are also carnivores. So far only 137 species have been discovered. What family is a sea sponge in?Ī few species that live in waters where the supply of food particles is very poor prey on crustaceans and other small animals. Water enters very small pores found among the cells (pinacocytes), which line the outer surface of the sponge.

The chambers, scattered throughout the body of the sponge, have pores through which water passes into a complex system of incurrent canals, then into a spongocoel (internal cavity) by way of excurrent canals. In what order does water move through a sponge? 5 How many different shapes of sponges are there?.4 How many families of sponges are there?.3 What are the three classes of sponges?.1 In what order does water move through a sponge?.

Who does the sea sponge move exageraiting slowmoving pictures