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.
The World Porifera Database - World Register of Marine Species
2024年10月25日 · Currently (2024), there are 9,698 valid species (marine + non-marine) in the database (among almost 20,000 taxon names). Acceptance is an editorial decision, but we acknowledge such decisions need to be re-examined frequently in the light of new information.
Sponge | Definition, Features, Reproduction, & Facts | Britannica
2024年11月5日 · 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 …
Porifera - 15+ Examples, Species, Characteristics, Difference
2024年9月20日 · Porifera, or sponges, are simple, multicellular organisms lacking true tissues and organs. Found mainly in marine environments, they filter water through their porous bodies for nutrition and respiration, playing a vital role in aquatic ecosystems and offering insights into early animal evolution.
What is a sponge? - NOAA's National Ocean Service
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 rarest and simplest ...
ADW: Porifera: INFORMATION
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.
Phylum Porifera | manoa.hawaii.edu/ExploringOurFluidEarth
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.
Global Diversity of Sponges (Porifera) - PMC - PubMed Central …
With the completion of a single unified classification, the Systema Porifera (SP) and subsequent development of an online species database, the World Porifera Database (WPD), we are now equipped to provide a first comprehensive picture of the global biodiversity of the Porifera.
Sponge - Porifera, Demospongiae, & Calcarea | Britannica
2024年11月5日 · Primitive aquatic invertebrate animals; about 5,000 species in all seas; attach to surfaces from intertidal zone to depths of 8,500 m (29,000 ft) or more; propel water containing food particles through a system of canals in body (filter feeding); composed of many cell types (archaeocytes of various kinds, pinacocytes, collencytes); structure of ...
5.1: Phylum Porifera - Biology LibreTexts
2022年8月24日 · 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.