Bivalve: Bivalve, (class Bivalvia), any of more than species of clams, oysters, levels and body diagrams of the eight classes of mollusks evolved from.
Bivalve mollusc culture is an important and rapidly expanding sector of world aquaculture production, representing approximately 20% of this output at 14 million. and other bivalve mollusks where they grow to maturity.
(White and Wilson Take cross-section from oyster as indicated in diagram Figure Cross-. There are approximately fifty thousand species in the phylum Mollusca, and this phylum characteristic of many mollusks is their external shell (B), seen in the clam diagram. The clam is called a bivalve because it has two hinged shells.
A bivalve shell is part of the body, the exoskeleton or shell, of a bivalve mollusk. In life, the shell Diagram of the internal shell structure of the left valve of bivalve resembling a venerid.
Dorsal view of a shell, 1:Plane of symmetry 2:Growth lines.Bivalvia (/ ˈ b aɪ v æ l v i ə /), 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. Bivalves as a group have no head and they lack some usual molluscan organs like the radula and the schematron.org include the clams, oysters.
Mollusks study guide by rmcknab includes 36 questions covering vocabulary, terms and more. Quizlet flashcards, activities and games help you improve your grades. Bivalve Anatomy The valve structure and soft anatomy of the bivalves varies among species.
The Hard-Shelled Clam or Cherrystone, Mercenaria mercenaria, is used here as an example of a typical bivalve. Important features of bivalve shells are. A bivalve shell is part of the body, the exoskeleton or shell, of a bivalve mollusk.
In life, the shell of this class of mollusks is composed of two hinged parts or valves. Bivalves are very common in essentially all aquatic locales, including saltwater, brackish water, and freshwater.
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