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bivalves    音标拼音: [b'ɑɪv,ælvz]
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  • Bivalvia - Wikipedia
    Bivalves filter large amounts of water to feed and breathe but they are not permanently open They regularly shut their valves to enter a resting state, even when they are permanently submerged
  • Bivalve | Definition, Characteristics, Species, Classification, Facts . . .
    bivalve, (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 hinge
  • Bivalves - Types, Examples, Characteristics, Anatomy, Diet, Habitat
    Bivalves are a group of freshwater and marine mollusks with bilaterally symmetric and laterally compressed bodies encased in a characteristic two-part shell They belong to the class Bivalvia, a term coined by Linnaeus (1758) from two Latin words, bis (two) and valvae (leaves of a door)
  • What is a bivalve mollusk? - NOAAs National Ocean Service
    As filter feeders, bivalves gather food through their gills Some bivalves have a pointed, retractable "foot" that protrudes from the shell and digs into the surrounding sediment, effectively enabling the creature to move or burrow
  • Bivalves: Clams, Mussels, Oysters Scallops
    Bivalves are mollusks in the class Bivalvia, a group that includes familiar animals such as clams, mussels, oysters, and scallops as well as less obvious forms such as freshwater mussels, giant clams, and shipworms
  • Portal:Bivalves - Wikipedia
    Common bivalves include clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater
  • Bivalves (clams, oysters, mussels, scallops) | MarineBio
    Bivalves, the clams, oysters, mussels, and scallops, are two-shelled mollusks that filter the sea, build reefs, and even farm algae Explore how they live
  • What Are Bivalves? 5 Examples of These Amazing Creatures
    There are five main groups of bivalves; scallops, cockles, mussels, oysters, and clams While they are all bivalves, they each have unique properties and characteristics
  • Bivalve - Mollusks, Aquatic, Filter Feeders | Britannica
    Primitive forms were detritivorous, whereas modern bivalves are suspension feeders that collect food particles from seawater using ciliated ctenidia (modified gills) The burrowing, filter-feeding mode of life restricts bivalves to aquatic environments
  • BIVALVES
    Bivalves are distinctive within the Mollusca in that they are almost always completely enclosed within their shells They are laterally compressed, typically with shells divided in two halves, or valves, hinged together dorsally by an elastic, chitinous, external or internal ligament





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