WebA siphon is a long tube -like structure that is present in certain aquatic molluscs: Gastropods, bivalves, and cephalopods. The tube is used for the exchange of liquids, or air. This flow can have different purposes, the … WebBivalve. KidzSearch Safe Wikipedia for Kids. The bivalves are a large class of molluscs, also known as pelecypods . They have a hard calcareous shell made of two parts or 'valves'. The soft parts are inside the shell. The shell is usually bilaterally symmetrical . There are over 30,000 species of bivalves, including the fossil species.
Anomia ephippium - Wikipedia
WebJul 5, 2024 · The bivalves are a large class of molluscs, also known as pelecypods. They have a hard calcareous shell made of two parts or 'valves'. The soft parts are inside the shell. The shell is usually bilaterally symmetrical. There are over 30,000 species of bivalves, including the fossil species. There are about 9,200 living species in 1,260 genera ... The taxonomic term Bivalvia was first used by Linnaeus in the 10th edition of his Systema Naturae in 1758 to refer to animals having shells composed of two valves. More recently, the class was known as Pelecypoda, meaning "axe-foot" (based on the shape of the foot of the animal when extended). The name … See more Bivalvia , 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 consisting of two hinged parts. As a … See more The Cambrian explosion took place around 540 to 520 million years ago (Mya). In this geologically brief period, all the major animal phyla diverged and these included the first creatures … See more The bivalves are a highly successful class of invertebrates found in aquatic habitats throughout the world. Most are infaunal and live buried in sediment on the seabed, or in the sediment in … See more Most bivalves adopt a sedentary or even sessile lifestyle, often spending their whole lives in the area in which they first settled as juveniles. The majority of bivalves are infaunal, living under the seabed, buried in soft substrates such as sand, silt, mud, gravel, or coral … See more Bivalves have bilaterally symmetrical and laterally flattened bodies, with a blade-shaped foot, vestigial head and no radula. At the dorsal or … See more Brachiopods are shelled marine organisms that superficially resembled bivalves in that they are of similar size and have a hinged shell in two parts. However, brachiopods … See more The adult maximum size of living species of bivalve ranges from 0.52 mm (0.02 in) in Condylonucula maya, a nut clam, to a length of 1,532 millimetres (60.3 in) in Kuphus polythalamia, an elongated, burrowing shipworm. However, the species generally … See more orchardstown
Siphon (mollusc) - Simple English Wikipedia, the free …
WebStarfish. Starfish, or sea stars, are Echinoderms of the Class Asteroidea. [3] p35. All live in the ocean, on the sea floor. Many starfish live in deep water, others in shallow water. Some live in the intertidal zone, between low and high tide. [4] They have five or more arms and can be quite large. WebStarfish. Starfish, or sea stars, are Echinoderms of the Class Asteroidea. [3] p35. All live in the ocean, on the sea floor. Many starfish live in deep water, others in shallow water. Some live in the intertidal zone, between low and high tide. [4] They have five or more arms … WebThe Chilean mussel or Chilean blue mussel is a species of blue mussel native to the coasts of Chile from Biobío Region (37 ºS) to Cape Horn (55 ºS). Today genomic evidence confirmed that the native Chilean blue … orchardsd.org