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https://www.answers.com/Q/Do_sponges_have_a_support_system
May 21, 2012 · Sponges are not cephalized because they do not have defined head region nor do they have a central location for their nervous system. The nervous system in sponges is …
https://skeletalphylum.weebly.com/porifera.html
Sclerosponges are sponges with a soft body that covers a hard, skeleton made of calcium carbonate. Because of their long life span (500-1,000 years) it is thought that analysis of the aragonite skeletons of these sponges could extend data regarding ocean temperature, salinity, and other data farther into the past than has been previously possible.
https://en.wikipedia.org/wiki/Sponge
The wave-like motion of the whip-like flagella drives water through the sponge's body. All sponges have ostia, channels leading to the interior through the mesohyl, and in most sponges these are controlled by tube-like porocytes that form closable inlet valves.Kingdom: Animalia
https://www.thoughtco.com/sponges-profile-p2-130755
The larvae are ciliated, free-swimming creatures. Most sponges inhabit marine environments but a few species live in freshwater habitats. Sponges are primitive multicellular animals that have no digestive system, no circulatory system, and no nervous system. They do not have organs and their cells are not organized into well-defined tissues.
https://www.answers.com/Q/What_supports_sponges
Apr 30, 2010 · Sponges do not have a specific respiratory system. The water flow system supports this function. Sponge cells absorb oxygen from water by difusion. ... Most kitchen sponges …
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Found in the mesoglea, make up the sponges support system. Spicules. Main opening of sponges where water is expelled from the body of the sponge. Osculum. The main body cavity of the sponge. Spongocoel. Thin, flat cells that contract in response to touch or chemicals, control the size of the ostia.
https://en.wikipedia.org/wiki/Sponge_spicule
Sponges can be calcareous, siliceous, or composed of spongin. Function. The meshing of many spicules serves as the sponge’s skeleton. It provides structural support and defense against predators. Taxonomic importance. The composition, size, and shape of spicules is one of the largest determining factors in sponge taxonomy. Formation
https://www.britannica.com/animal/sponge-animal
The members of one family, the Spongillidae, are found in fresh water; however, 98 percent of all sponge species are marine. Adult sponges lack a definite nervous system and musculature and do not show conspicuous movements of body parts. General features
https://phylumskeletalsystem.weebly.com/porifera.html
The calcareous sponges of class Calcarea are members of the animal phylum Porifera, the cellular sponges. Calcareous sponges vary from radially symmetrical vase-shaped body types to colonies made up of lots of thin tubes. The skeleton has either a mesh or honeycomb structure.
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