What is a sponge? - NOAA's National Ocean Service
A diverse sponge population can affect water quality on the reef as the sponges filter water, collect bacteria, and process carbon, nitrogen, and phosphorus. In nutrient-depleted coral reefs, some sponge species are thought to make carbon biologically available by excreting a form of “sponge poop” that other organisms feed on, thereby ...
Sponge - Wikipedia
Sponges are multicellular organisms consisting of jelly-like mesohyl sandwiched between two thin layers of cells, and usually have tube-like bodies full of pores and channels that allow water to circulate through them.
Sponge - Anatomy, Filtering, Reproduction | Britannica
2024年11月5日 · Sponges are unusual animals in that they lack definite organs to carry out their various functions. The most important structure is the system of canals and chambers, called a water-current system, through which water circulates to bring food and oxygen to the sponge.
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 …
Freshwater sponge | aquatic, filter-feeding, sponges | Britannica
Freshwater sponge, any of about 20 species of the genus Spongilla (class Demospongiae, siliceous sponges), a common, widely occurring group. Spongilla species are found in clean lake waters and slow streams. Freshwater sponges are delicate in structure, growing as encrusting or branching masses.
Sponges - MarineBio Conservation Society
Sponges are filter feeders, meaning they extract food particles from water by pumping it through their bodies. They have a high degree of filtration efficiency, which helps maintain the water quality of their habitats. Sponges obtain nutrients and oxygen from the water and release waste products through the same channels.
What Are Sponges and Why Do They Matter? - NOAA Ocean …
2022年5月9日 · Sponges help create habitat, filter particles from seawater, contribute to carbon, nitrogen, and silica cycling. They have also been used for bathing since ancient Egypt.
Interactive Sponge Guide
offers practical identifications of the shallow-water marine sponges of southern Florida from Indian River Lagoon through the Florida Keys, Florida Bay and the Dry Tortugas, including species from all shallow-water habitats;
SponGIS - What are deep-sea sponges?
Sponges are invertebrate, aquatic animals belonging to the Phylum Porifera. They are filter feeding organisms, meaning that their bodies are specialised to separate suspended food particles out of the water. They spend their adult lives attached to the seabed (i.e., they are sessile benthic organisms).
How Water Flows inside a Sea Sponge - Physics
2024年5月16日 · The water moving up through the sponge’s body is filtered by a system that consists of nanoscale slits that extract food particles and of active pumps that help push fluid through. The importance of those pumps was studied in previous experiments on live sponges, both in the lab and in their natural habitat [ 3 ].
- 某些结果已被删除