Sponges belong to which phylum

What do sponges and cnidarians have in common? • Sponges belong to Phylum Porifera. • Cnidarians belong to Phylum Cnidaria. • Sponges have intracellular digestion and lack tissues. • Cnidarians have nematocysts. • Sponges capture planktons by filtering water through their cells. • Cnidarians are predators and feed on small fish ...

Oct 25, 2021 · The phylum that sponges belong to is known as Phylum Porifera. Poriferans belong to Kingdom Animalia due to being multicellular, their reliance on external sources for nutrients, and lack of cell ... Nov 19, 2022 · What does sponge belong to? The approximately 8,550 living sponge species are scientifically classified in the phylum Porifera, which is comprised of four distinct classes: the Demospongiae (the most diverse, containing 90 percent of all living sponges), Hexactinellida (the rare glass sponges), Calcarea (calcareous sponges), and …Introduction. Sponges (Porifera) are the most ancient, extant metazoans on Earth, with about 8500 described species ( Van Soest et al., 2012 ). Members of the phylum Porifera emerged during the Precambrian, 700 million years ago ( Müller, 1997 ). Sponges are represented in all seas and oceans of the world and are able to resist extreme ...sponges belong-phylum Porifera-means "having pores." 5. Because moving water carries food and removes wastes, it is the key to the sponge's survival. Water ...Study with Quizlet and memorize flashcards containing terms like To what phylum do sponges belong? A) Eumetazoa B) Parazoa C) Porifera D) Calcarea E) Placozoa, How many of the following can be observed in the mesohyl of various undisturbed sponges at one time or another? 1. Amoebocytes 2. Spicules 3. Spongin 4. Zygotes 5. Choanocytes A) One of these B) Two of these C) Three of these D) Four of ...27 សីហា 2006 ... what phylum does SPONGES belong to? Thanks! Click to expand... Phylum profera(sponges). If u have Kaplan blue book, ...There is no sponge righteous; no, not even one. There is no sponge righteous; no, not even one. The traditional sponge soaks up filth and gets stinky within a week. It is also terrible at scrubbing. The silicone sponge doesn’t soak up filth...Sponges. Sponges are aquatic invertebrates that make up Phylum Porifera. The word porifera means “pore-bearing.” As you can see from the close-up view in Figure below, a sponge has a porous body with many small holes in it. There are at least 5000 living species of sponges. Almost all of them inhabit the ocean.

Marine sponges belonging to the phylum Porifera (Metazoa), evolutionarily the oldest animals are the single best source of marine natural products. The ...Jul 5, 2017 · Sponges. Sponges are aquatic invertebrates that make up Phylum Porifera. The word porifera means “pore-bearing.” As you can see from the close-up view in Figure below, a sponge has a porous body with many small holes in it. There are at least 5000 living species of sponges. Almost all of them inhabit the ocean. Phylum Porifera has a structure resembling a sponge and is therefore called sponges. They are attached to the substratum and are not able to move. Poriferans have the …Phylum Porifera. Renata Manconi, Roberto Pronzato, in Thorp and Covich's Freshwater Invertebrates (Fourth Edition), 2015. General Systematics. The phylum Porifera is subdivided into four recent classes: Hexactinellida, Demospongiae, Calcarea, and Homoscleromorpha, according the multi-authored World Porifera Database (Van Soest et al., 2012) on sponge taxonomy.Phylum Porifera (sponges) Which animal phylum develops from only two initial germ layers? Diploblastic Sets found in the same folder. Bio 101- Ch.4-6. 113 terms ...

What organisms belong to the phylum Porifera? Which larva is found in phylum porifera? What kind of sponge is SpongeBob? Are sponges Heterotrophs? Do sponges ...The phylum Porifera is subdivided into four recent classes: Hexactinellida, Demospongiae, Calcarea, and Homoscleromorpha, according the multi-authored World Porifera Database (Van Soest et al., 2012) on sponge taxonomy. All recent freshwater sponges belong to the suborder Spongillina of the order Haplosclerida (Demospongiae) currently divided ... Porifera Sponges. Porifera is a Phylum of sponges that belongs to Kingdom Animalia (the animal kingdom). The name "porifera" originates from Latin and translates to "pore-bearing". It also stems ...The phylum Porifera is subdivided into four recent classes: Hexactinellida, Demospongiae, Calcarea, and Homoscleromorpha, according the multi-authored World Porifera Database (Van Soest et al., 2012) on sponge taxonomy. All recent freshwater sponges belong to the suborder Spongillina of the order Haplosclerida (Demospongiae) currently divided ... Bath sponge belongs to phylum ______. Advertisement. Solution Show Solution. Bath sponge belongs to phylum Porifera. Concept: Kingdom Animalia. Report Error Is ...

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Brown tube sponges are found in a variety of habitats, including coral reefs, rocky shores, and seagrass beds. They are known to thrive in areas with moderate to strong water flow and prefer to attach to hard substrates such as rocks or dead coral. These sponges play an important role in their ecosystem by filtering large amounts of water, removing particles and nutrients, and providing ...Section Summary. Animals included in phylum Porifera are Parazoans because they do not show the formation of true tissues (except in class Hexactinellida). These organisms show very simple organization, with a rudimentary endoskeleton. Sponges have multiple cell types that are geared toward executing various metabolic functions.We present the BioM Innovation Database, the first of its kind containing detailed information about global biomimetic activity. We present a quantitative and qualitative analysis of the database to address the following questions: (1) Are products, which are identified as being the result of biologically inspired design (BID), actually BID …But note the discussion of the other leading hypothesis, that Porifera (sponges) ... reptiles, birds, and mammals all belong to a single phylum, phylum Chordata). Specifically, Limnognathia is the only member of phylum Micrognathozoa and the Gingko may be the only surviving species of its division as well.They are the lowest multicellular animals belonging to the Kingdom Animalia. Phylum Porifera has a structure resembling a sponge and is therefore called sponges ...Sponges belong to phylum porifera ('pore-bearing"). Members of phylum porifera are sessile filter feeders, acoelomates, aquatic- mostly marine-, and live on and in substraits. There are 5500 species (150 freshwater); Porifera is a relatively small phylum. Where do sponges belong? Sponges belong in the clade Metazoa and the clade Parazoa ...

Sponges belong to the phylum Porifera, meaning pore bearing. They are nearly exclusively marine and are quite simple organisms, but vary greatly in form and size. Some are solitary individuals, and others occur in groups or colonies of individuals. They lack internal organs and circulatory and digestive systems. Study with Quizlet and memorize flashcards containing terms like What phylum do sponges belong, What does their phylum name mean, Name ways in which sponges differ from other animal phyla and more.Oct 4, 2007 · 5. Sponges may grow on mollusks, barnacles, brachiopods, or corals. 6. Some crabs use sponges as camouflage. 7. Sponges are generally distasteful, may emit noxious odors, and have few enemies. 8. Position in Animal Kingdom: Metazoa are divided into 3 grades: a. Mesozoa (a single phylum) b. Parazoa (phylum Porifera, sponges; and …Chordates: Turtles, Includes animals with a cranium but no backbone Echidnoderms: A water vascular system aids movement Cnidarians: Jellyfish, Incomplete digestive tract and radial symmetry Sponges: Porous filter feeders Roundworms: Unsegmented worms with a pseudocolom Flatworms: Unsegmented worms with no coelom Arthropods: Crustacean, Have an exoskeleton and jointed appendages 2. Sponges are basal animals 3. Eumetazoa is a clade of animals (eumetazoans) with true tissues 4. Most animal phyla belong to the clade Bilateria and are called bilaterians 5. Most animals are invertebrates, lacking a backbone; Chordata is the only phylum that includes vertebrates, animals with a backboneFigure 1. Sponges are members of the Phylum Porifera, which contains the simplest invertebrates. (credit: Andrew Turner) The invertebrates, or invertebrata, are animals that do not contain bony structures, such as the cranium and vertebrae. The simplest of all the invertebrates are the Parazoans, which include only the phylum Porifera: the ...Phylum Porifera, or the sponge, is entirely aquatic, with over 98 percent living in the ocean, and the rest living in freshwater lakes and streams, according to BioMedia Associates.Bath sponge belongs to phylum ______. Advertisement. Solution Show Solution. Bath sponge belongs to phylum Porifera. Concept: Kingdom Animalia. Report Error Is ...Spongilla. Spongilla is a genus of freshwater sponges. They are found attached to rocks, sticks and plants. To withstand adverse weather conditions, they have a dormant stage known as gemmules. These sponges have a thin dermal layer and have a soft texture. Spicules present on the dermal layer provide skeletal framework and protection.Spongilla. Spongilla is a genus of freshwater sponges. They are found attached to rocks, sticks and plants. To withstand adverse weather conditions, they have a dormant stage known as gemmules. These sponges have a thin dermal layer and have a soft texture. Spicules present on the dermal layer provide skeletal framework and protection.

Economic Importance Of Sponges (Phylum Porifera) With Examples Economic Importance of Phylum Arthropoda in Urdu/Hindi Economic Importance Of Phylum Arthropoda ... CH 10, LEC 12: Phylum ArthropodaSponges actually belong to phylum Porifera.The Word Porifera is derived from porus= pore, and ferra= to bear. The Porifera are pore-bearing animals ...

2. List the fundamental characteristics of members of phylum Porifera and phylum Cnidaria 2 Compare the feeding methods of sponges and jellyfish. 4. Describe how the prominent characteristics of platyhelminths and nematodes promote their survival and reproduction 5.Sponges belongs to phylum Porifera. They are multicellular organisms, that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. Canal system is the characteristic feature of Porifera. They need a continuous current of water flowing through ... Phylum Porifera (sponges) Which animal phylum develops from only two initial germ layers? Diploblastic Sets found in the same folder. Bio 101- Ch.4-6. 113 terms ...Which phylum is it?, Jellyfish belong to what phylum? and more. Study with Quizlet and memorize flashcards containing terms like Sponges belong to what phylum?, This phylum is the most simplistic, with little cell specialization, no true tissues or organs, and are filter feeders.Sponges are an old animal group, perhaps the oldest animal group with living representatives. Sponges are an offshoot (very different from most animal and so probably do not resemble the most recent common ancestor of most animals). In the past, sponges were major contributors to reef formation. Glass sponges are the oldest branch.which animals belong to phylum nematoda? round worms like heartworms these animals have either an external or internal shell. some have one shell while others have two. the most "intelligent" of this phyla have an internal shell. they have a larval stage called a trochophore. they are bilateral.Jul 7, 2022 · Asconoid sponges are tubular with a central shaft called the spongocoel. The beating of choanocyte flagella force water into the spongocoel through pores in the body wall. Choanocytes line the spongocoel and filter nutrients out of the water. Advertisement The approximately 5,000 living sponge species are classified in the phylum Porifera ...Phylum Sponges belong to the Porifera phylum. Coral belongs to the Cnidaria phylum. Habitat: Found in a very deep shallow sea. Less likely to be found in the very deep sea. Survival Protection They protect themselves using toxins. They protect themselves using their tentacles. Calcium Carbonate: They do not secrete calcium carbonate.Study with Quizlet and memorize flashcards containing terms like sponges belong to what domain?, what kingdom do sponges belong to?, sponges belong to what phylum? and more. Fresh features from the #1 AI-enhanced learning platform.

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Sponges. Sponges are aquatic invertebrates that make up Phylum Porifera. The word porifera means “pore-bearing.” As you can see from the close-up view in Figure below, a sponge has a porous body with many small holes in it. There are at least 5000 living species of sponges. Almost all of them inhabit the ocean.Jul 5, 2017 · Sponges. Sponges are aquatic invertebrates that make up Phylum Porifera. The word porifera means “pore-bearing.” As you can see from the close-up view in Figure below, a sponge has a porous body with many small holes in it. There are at least 5000 living species of sponges. Almost all of them inhabit the ocean. The phylum name Porifera means pore-bearing. Sponges take their name from small holes that cover their bodies. The history of life is written on the bodies of the animals that previously inhabited and continue to inhabit earth. As we learn about the different invertebrate phyla, we will be able to chart some of this history.5. Sponges may grow on mollusks, barnacles, brachiopods, or corals. 6. Some crabs use sponges as camouflage. 7. Sponges are generally distasteful, may emit noxious odors, and have few enemies. 8. Position in Animal Kingdom: Metazoa are divided into 3 grades: a. Mesozoa (a single phylum) b. Parazoa (phylum Porifera, sponges; and phylum Placozoa)Figure 1. Sponges are members of the Phylum Porifera, which contains the simplest invertebrates. (credit: Andrew Turner) The invertebrates, or invertebrata, are animals that do not contain bony structures, such as the cranium and vertebrae. The simplest of all the invertebrates are the Parazoans, which include only the phylum Porifera: the ...Nov 16, 2022 · Sponges are in the Phylum Porifera, which means pore-bearing. Sponges are unique among animals for not having "true" tissues. What group of invertebrates is the sponge belong to? Spongilla. Spongilla is a genus of freshwater sponges. They are found attached to rocks, sticks and plants. To withstand adverse weather conditions, they have a dormant stage known as gemmules. These sponges have a thin dermal layer and have a soft texture. Spicules present on the dermal layer provide skeletal framework and protection. Apr 3, 2023 · Additionally, here is a list of the most well-known species: Red encrusting sponge. Spongia barbara. Giant barrel sponge. Callyspongia aculeata. Niphates erecta. Agelas dispar. Spheciospongia vesparium. Erylus alleni. Neofibularia nolitangere. Corallistes typus. which animals belong to phylum nematoda? round worms like heartworms these animals have either an external or internal shell. some have one shell while others have two. the most "intelligent" of this phyla have an internal shell. they have a larval stage called a trochophore. they are bilateral.Brown tube sponges are found in a variety of habitats, including coral reefs, rocky shores, and seagrass beds. They are known to thrive in areas with moderate to strong water flow and prefer to attach to hard substrates such as rocks or dead coral. These sponges play an important role in their ecosystem by filtering large amounts of water, removing particles and nutrients, and providing ... ….

Phylum Porifera. Renata Manconi, Roberto Pronzato, in Thorp and Covich's Freshwater Invertebrates (Fourth Edition), 2019. Limitations. All freshwater sponges are in the class Demospongiae, order Spongillida.Keys to families and genera are primarily based on specimens displaying all diagnostic characters, and hence care must be taken when …The phylum Porifera is sponges. What is the phylum of mint plant? ... Porifera are sponges. How many species belong to the phylum porifera? Porifera is a phylum, not a kingdom, but I assume you ...Sponges belong to phylum porifera ('pore-bearing"). Members of phylum porifera are sessile filter feeders, acoelomates, aquatic- mostly marine-, ...Based on these types of distinctions, the biological sciences define at least five kingdoms of living things: bacteria, blue-gree n algae (cyanobacteria), and spirochetes. sponges, worms, insects, fish, amphibians, reptiles, birds, and mammals. Most macroscopic creatures are either plants or animals.The onlyphylum of animals that is asymmetrical are the sponges, phylum Porifera.Organisms with radial symmetry have body parts that are arranged in a regular, repeatingpattern around a central axis ... Many of the species thatbiologists have named belong to the animal group because they are usually easy to see, ...They are eukaryotes. They are the simplest animals on Earth. Multiple Choice. Edit. Please save your changes before editing any questions. 30 seconds. 1 pt. Asexual reproduction in sponges can produce capsules that are resistant and can survive harsh conditions. These cells are called. Which character does not belong to phylum Aschelminthes? (a) Excretory tube (branched ducts) removes body waste form the body cavity through excretory pore. (b) Usually sexes are separate (unisexual or dioecious). (c) Development may be direct or indirect. (d) Alimentary canal is incomplete with a well-developed muscular pharynx.Answer and Explanation: 1. Become a Study.com member to unlock this answer! Create your account. View this answer. Sponges belong to phylum Porifera based on their characteristics, including that they are invertebrates, are made of cells that are not organized into... See full answer below.Sponges are animals with dense skeletons that are highly adapted to their environments, although it is easy to see why they may be mistaken for plants. Sponges are found in a wide variety of colors, shapes, and sizes – and scientists believe that the colors of the sponge may act as a protection from the sun’s harmful UV rays. Most sponges are found in the ocean, but there are certain ... Sponges belong to which phylum, Introduction. Sponges (Porifera) are the most ancient, extant metazoans on Earth, with about 8500 described species ( Van Soest et al., 2012 ). Members of the phylum Porifera emerged during the Precambrian, 700 million years ago ( Müller, 1997 ). Sponges are represented in all seas and oceans of the world and are able to resist extreme ... , Porifera. sponges. Sponges are a di­verse group of some­times com­mon types, with about 5000 species known across the world. Sponges are pri­mar­ily ma­rine, but around 150 species live in fresh water. Sponges have cel­lu­lar-level or­ga­ni­za­tion, mean­ing that that their cells are spe­cial­ized so that dif­fer­ent cells per ... , Sponges belongs to phylum Porifera. They are multicellular organisms, that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. Canal system is the characteristic feature of Porifera. They need a continuous current of water flowing through ..., Sea Sponges Stock Vector Art & More Images Of Abstract 505019480 Istock. Web sponges belong to who kingdom animalia the the phylum porifera, yes at one time they were thought to become plants. Web cut sponges into various shapes (squares, triangles, diamonds etc.) dip sponges in paint and dab them onto scrap paper to remove the excess paint., Sponges, members of the phylum Porifera, are one of the simplest multicellular animals living today. They're also among the oldest, with a fossil record extending back to the last part of the Precambrian, about 550 million years ago. Sponge fossils occur in rocks all over the world. In Kansas, fossil sponges can be found in the Pennsylvanian ... , May 11, 2019 · Sponges belong to the phylum Porifera. What are the three functions of Amoebocytes in sponges? Amoebocytes have a variety of functions: delivering nutrients from choanocytes to other cells within the sponge; giving rise to eggs for sexual reproduction (which remain in the mesohyl); delivering phagocytized sperm from choanocytes to eggs; and ... , Sponges. Sponge, any of the primitive multicellular aquatic animals that constitute the phylum Porifera. They number approximately 5,000 described species and inhabit all seas, where they occur attached to surfaces from the intertidal zone to depths of 8,500 metres (29,000 feet) or more. The members of one family, the Spongillidae, are found in ... , What do sponges and cnidarians have in common? • Sponges belong to Phylum Porifera. • Cnidarians belong to Phylum Cnidaria. • Sponges have intracellular digestion and lack tissues. • Cnidarians have nematocysts. • Sponges capture planktons by filtering water through their cells. • Cnidarians are predators and feed on small fish ..., They are eukaryotes. They are the simplest animals on Earth. Multiple Choice. Edit. Please save your changes before editing any questions. 30 seconds. 1 pt. Asexual reproduction in sponges can produce capsules that are resistant and can survive harsh conditions. These cells are called. , Spongilla is a genus of freshwater sponges with over 200 different species. Spongilla was first publicly recognized in 1696 by Leonard Plukenet and can be found in lakes, ponds and slow streams .Spongilla have a leuconoid body form with a skeleton composed of siliceous spicules. They are sessile organisms, attaching themselves to hard substrate like rocks, logs and sometimes to ground. Using their ostia and osculum these sponges filter the water for various s…, #1. Sponges belong to the phylum Porifera #2. Sponges are Sessile, Pore bearing, Monoblastic animals #3. Sponges capture their food to eat #4. They absorb organic carbon #5. They produce sperm cells, not pollen grains #6. Their cells do not have cell walls #7. The reserve food material of sponges is glycogen #8. Other reasons to consider ..., Economic Importance Of Sponges (Phylum Porifera) With Examples Economic Importance of Phylum Arthropoda in Urdu/Hindi Economic Importance Of Phylum Arthropoda ... CH 10, LEC 12: Phylum ArthropodaSponges actually belong to phylum Porifera.The Word Porifera is derived from porus= pore, and ferra= to bear. The Porifera are pore-bearing animals ..., Nov 19, 2022 · What does sponge belong to? The approximately 8,550 living sponge species are scientifically classified in the phylum Porifera, which is comprised of four distinct classes: the Demospongiae (the most diverse, containing 90 percent of all living sponges), Hexactinellida (the rare glass sponges), Calcarea (calcareous sponges), and Homoscleromorpha , The invertebrates, or invertebrata, are animals that do not contain bony structures, such as the cranium and vertebrae. The simplest of all the invertebrates are the Parazoans, which include only the phylum Porifera: the sponges (Figure 28.1.1 28.1. 1 ). Parazoans (“beside animals”) do not display tissue-level organization, although they do ... , Sponges belong to the phylum A Platyhelminthes. B Chordata. C Porifera. D Cnidaria. E Echinodermata. C. All of these animals are mollusks except A scallops. B flatworms. , Sponges belong to the phylum Porifera. What are the three functions of Amoebocytes in sponges? Amoebocytes have a variety of functions: delivering nutrients from choanocytes to other cells within the sponge; giving rise to eggs for sexual reproduction (which remain in the mesohyl); delivering phagocytized sperm from choanocytes to eggs; and ..., Phylum Sponges belong to the Porifera phylum. Coral belongs to the Cnidaria phylum. Habitat: Found in a very deep shallow sea. Less likely to be found in the very deep sea. Survival Protection They protect themselves using toxins. They protect themselves using their tentacles. Calcium Carbonate: They do not secrete calcium carbonate., what are the two species of sponges pictured? purple tube and barrel sponge. wheres does the word Cnidarian come from and what does it mean? greek word cnidos, stinging needle. name the 4 major groups of Cnidarians and list an example of each. Anthozoa, Cubozoa, hydarozoa,scyphozoa., sponges belong to which phylum? (latin name and common name) cnidaria stinging-cell animals. jellies, hydras, sea anemones, corals belong to which phylum? (latin name ... , The giant barrel sponges (Xestospongia spp.) belong to a pan-global species complex with evidence suggesting ... by phylum to demonstrate the relative abundance of the dierentiating taxa for each ..., A good quality sea sponge is a great investment because it can last for years if properly taken care of. Regular cleaning is essential to maintain the sponge's hygiene and extend its life., Jul 5, 2017 · Sponges. Sponges are aquatic invertebrates that make up Phylum Porifera. The word porifera means “pore-bearing.” As you can see from the close-up view in Figure below, a sponge has a porous body with many small holes in it. There are at least 5000 living species of sponges. Almost all of them inhabit the ocean. , Oct 25, 2021 · The phylum that sponges belong to is known as Phylum Porifera. Poriferans belong to Kingdom Animalia due to being multicellular, their reliance on external sources for nutrients, and lack of cell ..., Butterflies belong to the Kingdom Animalia, the Phylum Arthropoda, the Class Insecta, the Order Lepidoptera and the Sub-order Rhopalocera., But note the discussion of the other leading hypothesis, that Porifera (sponges) ... reptiles, birds, and mammals all belong to a single phylum, phylum Chordata). Specifically, Limnognathia is the only member of phylum Micrognathozoa and the Gingko may be the only surviving species of its division as well., Study with Quizlet and memorize flashcards containing terms like Which of the following is false about animals?, Sponges belong to the phylum:, Sponges live a(n) ____ lifestyle. and more. , Nov 19, 2022 · What does sponge belong to? The approximately 8,550 living sponge species are scientifically classified in the phylum Porifera, which is comprised of four distinct classes: the Demospongiae (the most diverse, containing 90 percent of all living sponges), Hexactinellida (the rare glass sponges), Calcarea (calcareous sponges), and …, Explanation: Sponges belong to phylum Porifera. There are calcium carbonate crystals in the body of the sponge which acts as the endoskeleton. They are known as sponges because they have a perforated body like a sponge. There is a water transport or canal system in which the water enters through ostia in the body wall into the spongocoel and ..., The simplest animals include the sponges (Porifera) and the Cnidaria. Sponges are unsymmetrical or radially symmetrical, with many cell types but no distinct tissues; their bodies contain numerous pores and sharp protective spicules. Coelenterates (phylum Cnidaria) are radially symmetrical, with two tissue layers (ectoderm and endoderm ..., Although the entire phylum Porifera consists of more than 5000 species ( Bergquist, 1978), there are probably fewer than 300 freshwater species worldwide. In the most recent taxonomic revision of the Spongillidae, the largest family of freshwater sponges, Penney and Racek (1968) list a total of 95 species in 18 genera., Phylum Porifera (“pori” = pores, “fera” = bearers) are popularly known as sponges. Sponge larvae are able to swim; however, adults are non-motile and spend their life attached to a substratum through a holdfast. The majority of sponges are marine, living in seas and oceans. There is, however, one family of fresh water sponges (Family ..., Sponges are unique creatures. They are in the Phylum Porifera and there are about 5,000 different known species. They are one of the simplest forms of multi-cellular animals and come in a variety of different colors, shapes, and sizes. Sponges lack organs and a nervous system. They are sessile organisms, attached to reef surfaces via a holdfast., Solution: ∙ Sponges belong to the phylum Porifera, which is the simplest Phylum in Kingdom Animalia.. ∙ A few features of kingdom Porifera are as follows: . 1: Cylindrical body shape with the presence of a water canal system. These are usually present in aquatic environments. 2: Cells of totipotent character and plasticity. 3: There are multiple pores …