Sponge - Wikipedia Sponges constitute the phylum Porifera, and have been defined as sessile metazoans (multicelled immobile animals) that have water intake and outlet openings connected by chambers lined with choanocytes, cells with whip-like flagella
Sponge | Definition, Features, Reproduction, Facts | Britannica 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
Characteristics of Phylum Porifera - BYJUS Poriferans are pore-bearing first multicellular animals The pores are known as Ostia The poriferans have a spongy appearance and are therefore called sponges They are attached to the substratum and do not move They have the ability to absorb and withhold fluids
Phylum Porifera- Characteristics, classification, examples - Microbe Notes Phylum Porifera Characteristics Porifera are all aquatic, mostly marine except one family Spongillidae which lives in freshwater They are sessile and sedentary and grow like plants The body shape is vase or cylinder-like, asymmetrical, or radially symmetrical
Phylum Porifera - Definition, General Characteristics, Classification . . . Phylum Porifera refers to a group of simple, sessile aquatic animals commonly known as sponges Sponges lack true tissues and organs and have a porous body structure with numerous channels and chambers that allow water to flow through them
Phylum Porifera | manoa. hawaii. edu ExploringOurFluidEarth Introduction to Phylum Porifera The phylum Porifera comprises the sponges Sponges are simple invertebrate animals that live in aquatic habitats Although the majority of sponges are marine, some species live in freshwater lakes and streams They are found in shallow ocean environments to depths as great as five kilometers (km)
Porifera : Characteristics and Classification - Biology Educare The term ‘Porifera’ is derived from two Latin words ‘Porus’ meaning pores and ‘Ferre’ meaning bear They are predominantly marine organisms which inhabit in the intertidal to the deepest ocean zone There are about 8500 described living species under the phylum Porifera worldwide
Sea Sponges or Porifera - Definition, Types, Reproduction, and Examples . . . Sea sponges, scientifically known as Porifera, are among the oldest and simplest multicellular animals on Earth These remarkable filter feeders have thrived in marine environments for over 500 million years, surviving multiple mass extinctions through their adaptable nature
5. 1: Phylum Porifera - Biology LibreTexts 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