Bivalve definition zoology

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August undefined, 2024

Webbivalve, (class Bivalvia), any of more than 15,000 species of clams, oysters, mussels, scallops, and other members of the phylum Mollusca characterized by a shell that is divided from front to back into left and right valves. The valves are connected to one another at a … Webfilter feeding, in zoology, a form of food procurement in which food particles or small organisms are randomly strained from water. Filter feeding is found primarily among the …

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WebJan 26, 2001 · Bivalves also possess two ctenida (in most cases) and a muscular foot. The edges of the mantle are fused in some taxa and prolonged to form tube-like siphons . … WebAnatomy of a bivalve. Inside the shell. Bivalve molluscs come in many shapes and sizes, and live in many different ways. However, there are features shared by all bivalves. Bivalve molluscs are completely enclosed by a shell made of two valves hinged at the top. A hinge ligament made of elastic protein joins the two halves of the shell together ... cht highfield te awamutu

Bivalve Definition, Meaning & Usage FineDictionary.com

WebJan 9, 2024 · A bivalve's shell is formed of calcium carbonate that is secreted from the bivalve's mantle, which is the soft wall of the animal's body. The shell grows as the organism inside gets bigger. Not all … WebOct 13, 2024 · late 14c., "one of the halves of a folding door," from Latin valva (plural valvae) "section of a folding or revolving door," literally "that which turns," related to volvere "to roll," from PIE root *wel- (3) "to turn, revolve." Sense extended 1610s to "membranous fold regulating flow of bodily fluids;" 1650s to "mechanical device that works ... Webbivalve (bī′vălv′) n. Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the … desert cars for restoration

The Definition of Bivalve - ThoughtCo

WebPrimitive bivalves have paired gills that are small; in most other bivalves the gills are greatly enlarged. The vascular system contains the heart comprising a medial ventricle with left and right auricles. The reproductive system is simple. The most significant adaptation is the shell with two valves that wholly contains the animal. The oldest known bivalves … Webbivalve: [adjective] being or having a shell composed of two valves. cht hicloudWebJan 9, 2024 · A bivalve's shell is formed of calcium carbonate that is secreted from the bivalve's mantle, which is the soft wall of the animal's body.The shell grows as the … ch thiers radio

"WebBivalvia ( / baɪˈvælviə / ), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell … " - Bivalve definition zoology

Bivalve definition zoology

bivalve - WordReference.com Dictionary of English

Webbivalve in British English. 1. Also: pelecypod, lamellibranch. any marine or freshwater mollusc of the class Pelecypoda ( formerly Bivalvia or Lamellibranchia ), having a laterally compressed body, a shell consisting of two hinged valves, and gills for respiration. The group includes clams, cockles, oysters, and mussels. 2. Webbi•valve. n. 1. any mollusk, as the oyster or mussel, of the class Bivalvia, having hinged lateral shells, a soft body enclosed by a mantle, sheetlike gills, and often a retractile foot. …

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WebMay 23, 2024 · Bivalve molluscs belong to the class Bivalvia (or Lamellibranchia) of the phylum Mollusca. Known by such common names as clams, mussels, cockles, oysters, … WebKingdom Animalia animals. Class Bivalvia. Species Calyptogena magnifica. Calyptogena magnifica: information (1) Calyptogena magnifica: pictures (1) Species Chlamydoconcha …

WebBivalve definition, any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills. See more. WebAnatomy of a bivalve. Inside the shell. Bivalve molluscs come in many shapes and sizes, and live in many different ways. However, there are features shared by all bivalves. …

WebA proteinaceous, rodlike structure in the digestive tract of a bivalve (mollusca) that rotates against a gastric shield and releases digestive enzymes. ... Definition: a fluid filled cavity … WebMay 23, 2024 · oyster. oys·ter / ˈoistər / • n. 1. any of a number of bivalve mollusks with rough irregular shells. Several kinds are eaten (esp. raw) as a delicacy and may be farmed for food or pearls, in particular: ∎ a true oyster (family Ostreidae), including the edible American oyster (Crassostrea virginica ). ∎ a similar bivalve of another ...

Webbivalve - WordReference English dictionary, questions, discussion and forums. All Free. WordReference.com Online Language Dictionaries. English Dictionary bivalve ... Zoology having two shells, usually united by a hinge. having two similar parts hinged together. 1670–80; bi-1 + valve;

Webbivalves. In bivalve: Food and feeding …achieved by folding the platelike gill lamellae into plicae. Each lamella comprises vertical rows of filaments upon the outer head of which are complex arrays of cilia that create a flow of water through the gill, form a filtration barrier, and transport retained particles to food grooves in the dorsal… cht hillcrestWebJul 12, 2024 · Borut Furlan/Getty Images. Sea stars have clear tube feet that extend from ambulacral grooves in the sea star's oral (bottom) surface. The sea star moves using hydraulic pressure combined with adhesion. It sucks in water to fill up the tube feet, which extends them. To retract the tube feet, it uses muscles. cht holdingsWebDec 30, 2011 · IQRA MUSHTAQ. Sophomore Anthropology/Biology double major at Loyola University. REU Mentors: Dr. Rüdiger Bieler (Curator, Zoology, Invertebrates) and Dr. Sid Staubach (Postdoctoral Fellow, Zoology, Invertebrates) Symposium Presentation Title: Evolution of the Labial Palps and Gills within the Palaeoheterodonta (Mollusca: Bivalvia). … cht holdco llcWeb1. Definition of Molluscs: Phylum Mollusca is a group of invertebrates which has fascinated man from the dawn of civilization. It is a major group in the animal kingdom as regards the number which occupies next to arthropods. The members of this group have adapted either on land or in water. desert catfish ffxiv redditWebbivalve in American English. (ˈbaɪˌvælv ) noun. 1. any of a class (Bivalvia) of mollusks, including mussels and clams, having a shell consisting of two valves hinged together. adjective. 2. having a shell of two valves hinged together. : also ˈbiˌvalved. desert catfish location ff14Weba tube that is extended when a bivalve is underwater. used to eat, get oxygen and excrete waste (two kinds: incurrent, excurrent) Mantle thin membrane inside a bivalve that … desert center gas stationWeba tube that is extended when a bivalve is underwater. used to eat, get oxygen and excrete waste (two kinds: incurrent, excurrent) Mantle thin membrane inside a bivalve that secretes (creates) the shell desert chapel united methodist church