The sponge has no organized tissue, but it relies on special cells such as choanocytes, porosites, amoebic cells, and pinacosites for its special functions in the body. Mesohyl acts as a kind of endoskeleton and helps maintain the tubular shape of the sponge.
What are the main indications for sponges?
Certain sponge species are adapted to freshwater environments. Their skeletal type allows them to live in either hard or soft deposits. Their pores allow them to filter the water around them for food. Inside the sponge are flagella that generate electric current for the choanocytes to trap food.
What kind of body structure does the sponge have?
Polyfera. The body of the sponge is made of a jelly-like material (mesohyl), mainly made of collagen, and is reinforced by a dense network of fibers also made of collagen. It is sandwiched between two thin layers of cells. Many also have a skeleton composed of calcium carbonate or silica spicules.
Which cells provide the structure to the sponge?
3 (a) Structure of sponge Special cells: Sponge has special choanocytes (or choanocytes) that are unique in the animal kingdom. .. Skeletons: Many species produce a silica (silica) or calcium carbonate (calcium) skeleton, providing some structure for an essentially shapeless growth morphology. Sponge Structure-Biodiscovery and the Great Barrier Reef
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