Sponge Body Diagram. Sponges have three different body plans of sponges and use flagellated cells to pull seawater into their bodies to obtain particles of food. Diagram of a section through part of a sponge with a fibrous skeleton.
The body of a sponge has two outer layers separated by an acellular having no cells gel layer called the mesohyl also called the mesenchyme. Body of a sponge. The body of the sponge is covered externally by a thin dermal epithelium or ectoderm.
Sponges are filter feeders.
The body of a sponge has two outer layers separated by an acellular having no cells gel layer called the mesohyl also called the mesenchyme. The surface of a cylinder has polygonal elevations and between the elevations are depressed lines in the depressions are groups of ostia which are inhalant or incurrent pores. Usually the sponge body is asymmetrical but few forms exhibit radial symmetry. They have been around for approximately 750 million years.
