Bivalve definition zoology

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Webbivalve: [adjective] being or having a shell composed of two valves. 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 ...

The Definition of Bivalve - ThoughtCo

Webfunction in bivalve nourishment. In bivalve: Internal features. The paired labial palps in the mantle cavity are used in feeding. The outer palp on each side bears a long, extensible proboscis with a ciliated groove that collects organic material, which is then sorted by the inner pair and outer pair of palps. Certain particles are… Read More Webbivalve 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. city after city rose

Bivalve Definition & Meaning Dictionary.com

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, … Web1. 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. 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 … city age la

Bivalve Encyclopedia.com

WebJan 8, 2009 · What is a bivalve? A Bivalve is a molluscan shellfish. Their exoskeleton is comprised of two halves or valves, thus the name "Bivalve". WebJul 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. dickson durham cricketWebMay 8, 2024 · umbo (pl. umbones) A convex protuberance or swelling in the centre. In Brachiopoda and Bivalvia, the first part of the shell to be formed; it occurs at the posterior of each valve in brachiopods and forms the dorsal part of the shell in bivalves. A Dictionary of Zoology MICHAEL ALLABY. city agency contacts

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Bivalve definition zoology

Zoology 2: Swimming Creatures, Lesson 9 & 10 Mollusks: Bivalves ...

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. 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 . …

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WebKingdom Animalia animals. Class Bivalvia. Species Calyptogena magnifica. Calyptogena magnifica: information (1) Calyptogena magnifica: pictures (1) Species Chlamydoconcha orcutti. Species. Species Corbicula fluminea. Weba 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 …

WebADVERTISEMENTS: The following points highlight the six main classes of phylum mollusca. The classes are: 1. Monoplacophora 2. Amphineura 3. Gastropoda 4. Scaphopoda 5. Pelecypoda or Bivalvia or Lamellibranchiata 6. Cephalopoda. Class # 1. Monoplacophora: 1. The body is bilaterally symmetrical and covered by a mantle. 2. The … 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 …

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; Webn, pl -gies. 1. (Zoology) the study of animals, including their classification, structure, physiology, and history. 2. (Zoology) the biological characteristics of a particular animal or animal group. 3. (Zoology) the fauna characteristic of a particular region. 4.

WebApr 28, 2024 · Bilateral Symmetry Definition. Bilateral symmetry refers to organisms with body shapes that are mirror images along a midline called the sagittal plane. The internal organs, however, are not necessarily …

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. … dickson electorate votingWebBivalve mollusks (e.g., clams, oysters, mussels, scallops) have an external covering that is a two-part hinged shell that contains a soft-bodied invertebrate. A roughfile clam from the Flower Garden Bank National … city after nuclear explosionWebPrimitive 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 … city agenceWebbivalve 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. city age data for canada healthWebDec 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). … dickson electric dept dickson tnWebBivalves are distinguished from other molluscs by being having laterally compressed bodies encased in two shells (valves) that are held together by a dorsal hinge ligament (6) that causes the valves to open ventrally. The valves are drawn together by a pair of anterior (2) and posterior (8) adductor muscles, which are the parts of edible ... city agency directoryWebMar 27, 2024 · Incurrent and excurrent siphons are the tubular structures that burrowing bivalve molluscs, such as clams, use to feed, respire, reproduce and expel waste into … city agency of residency