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Geodia megastrella is a species of sponge in the family Geodiidae.It is a type of demosponge found in the deep temperate waters of the North Atlantic Ocean. [1] It has characteristic stellar-shaped large spicules coined 'megastrellum', hence its name.
The single species is the type species Monorhaphis chuni, a sponge known for creating a single giant basal spicule (G.B.S.) to anchor the sponge in the sediments. The species was described by Franz Eilhard Schulze in 1904 from specimens collected by the German Deep Sea Expedition in 1898–1899. [ 2 ]
The meshing of many spicules serves as the sponge's skeleton and thus it provides structural support and potentially defense against predators. [1] Sponge spicules are made of calcium carbonate or silica. Large spicules visible to the naked eye are referred to as megascleres or macroscleres, while smaller, microscopic ones are termed microscleres.
Spicules are structural support of sponges, similar to skeletons in higher animals. They are normally hollow structures that are formed by lamellar growth. [ 27 ] [ 28 ] [ 29 ] Whereas higher animal skeletons are largely calcium-based, sponge spicules consist mostly of silica , a silicon dioxide polymer. [ 30 ]
Over the past year, a number of high-profile companies have done about-faces on diversity, including Meta (), Walmart (), McDonald's (), Lowe’s (), Ford (), Tractor Supply (), and John Deere ...
It tends to have a scaly texture with bluff, ragged edges, says Zhou. Melanoma: Melanoma may only account for 1% of all skin cancers in the U.S. , but it’s by far one of the most deadly.
The giant barrel sponge (Xestospongia muta) is the largest species of sponge found growing on Caribbean coral reefs. It is common at depths greater than 10 metres (33 ft) down to 120 metres (390 ft) and can reach a diameter of 1.8 metres (6 feet). It is typically brownish-red to brownish-gray in color, with a hard or stony texture. [3]
Don’t tell the football players, but there’s so much more to the Super Bowl than the game. Last year viewership hit an all-time high, with 202.4 million people, or roughly 60% of the U.S ...
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