Bivalve definition zoology
WebMay 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. 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 …
Bivalve definition zoology
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WebBivalves synonyms, Bivalves pronunciation, Bivalves translation, English dictionary definition of Bivalves. n. Any of numerous freshwater and marine mollusks of the class … 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 …
WebBivalves 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 ... 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 . …
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 … WebMar 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 …
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 …
WebKingdom Animalia animals. Class Bivalvia. Species Calyptogena magnifica. Calyptogena magnifica: information (1) Calyptogena magnifica: pictures (1) Species Chlamydoconcha orcutti. Species. Species Corbicula fluminea. gr36 toyotaWebMay 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 ... gr 33 guitar synthesizerWebbivalve 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. gr 36 anchor rodsWebApr 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 … gr 36 sarthe carteWebDec 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). … gr.2 vw craftergr 34 fee waiverWebcephalization: [noun] a tendency in the evolution of organisms to concentrate the sensory and neural organs in an anterior head. gr38 coupling