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It has no symmetry, and they have jelly like cells that transport food throughout the body. Collar Cells: fires spines that traps food. Spiky things: Protects the Sponges's body.
Alvah Stokes
Wiki User
∙ 6y agoSponges have three different canal structures
1. Asconoid: This is the simplest canal system. Water simply enters and exits the spongocoel
2. Syconoid: Similar to Asconoid. However, the spongocoel is lined with canals.
3. Leuconoid: No spongocoel is present. The body is filled with chambers that receive water from incurrent canals and expel water into excurrent canals.
All freshwater sponges belong to the class demospongiae. All species in the class demospongiae posses leuconoid canals. Therefore, freshwater sponges have leuconoid canal systems
Wiki User
∙ 14y agoSponges, phylum porifera, have asymmetrical bodies.
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What are special characteristics of porifera?
Porifera are sponges, they have no main organs or tissues. They are a loose aggregation of cells. To eat they pump water though their system and catch the particles in the water. A very basic cell structure.
Where do phylum porifera?
The sponges or poriferans (from http://www.answers.com/topic/latin porus "pore" and ferre "to bear") are http://www.answers.com/topic/animal-def-leppard-song of the http://www.answers.com/topic/phylum Porifera. They are primitive, http://www.answers.com/topic/sessile, mostly http://www.answers.com/topic/ocean, water dwelling, http://www.answers.com/topic/filter-feeder that pump water through their bodies to filter out particles of food matter. Sponges represent the http://www.answers.com/topic/body-plan of animals. The sponges or poriferans (from http://www.answers.com/topic/latin porus "pore" and ferre "to bear") are http://www.answers.com/topic/animal-def-leppard-song of the http://www.answers.com/topic/phylum Porifera. They are primitive, http://www.answers.com/topic/sessile, mostly http://www.answers.com/topic/ocean, water dwelling, http://www.answers.com/topic/filter-feeder that pump water through their bodies to filter out particles of food matter. Sponges represent the http://www.answers.com/topic/body-plan of animals.
What type of symmetry are sponges?
an asymmetrical body plan
What is the difference between a hydra and flatworm?
one is segmented
Which phylum of animals has a body plan that is essentially a tube within a tube?
Nematoda- psuedocoelomates
Do all animals have a symmetrical body plan?
Nope, there are some that are asymmetrical. Like sponges.
What characteristics are shared by organisms in each animal phylum?
Organisms are grouped in the phylum by based on the general body plan. In other words, two organisms are in the same phylum if they have similar developmental processes or evolutionary relatedness.
What is the phylum of American Pit Bull Terrier?
The phylum can be thought of as grouping animals based on general body plan, as well as developmental or internal organizations. All dogs have the same phylum no matters what breed it is. The phylum of dogs is Chordata.
What type of body covering does sponges have?
Ostia
Cnidarians are members of the phylum?
Cnidarians are members of the phylum Cnidaria. They are a diverse group of animals that includes jellyfish, corals, and sea anemones. Cnidarians are characterized by their radial symmetry, specialized stinging cells called cnidocytes, and a basic body plan with a central mouth surrounded by tentacles.
What do sponges lack that make them more primitive and simpler?
Just finshed it on a test. Sponges lack a digestive track, symmertical plan, and nerce cells.
What is a sponge's symmetry like?
Yellow Encrusting Sponge Myxilla lacusnosa Sponges are the simplest of the multicellular animals. They have no organ systems and are characterized by numerous canals and chambers that open to the outside by way of pores which giving this phylum its name. Many sponges are asymmetrical, but some exhibit radial symmetry. They are almost plant-like in their simplicity and are often confused as being plants. The body plan of a typical sponge is shown in figure1. Water (carrying suspended plankton and other potential food) enters numerous small pores called ostia (singular, ostium). The ostia are surrounded by donut-shaped cells called porocytes that open and close to control water flow. For the sponge depicted in figure 1, water flows directly into an open chamber called the spongocoel (the term "coel" refers to an open space or body cavity in an animal). Water leaves the spongocoel by a larger opening (the osculum).
