Class Bivalvia Sign Video
Upload On Thu Jun 26 2014 by ASL STEM
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Definition
(Also called Bivalves). This class includes many species of clams, oysters, mussels, and scallops. Bivalves have a shell divided into two halves. The halves are hinged at the mid-dorsal line, and powerful adductor muscles draw them tightly together to protect the soft-bodied animal. Bivalves have no distinct head, and the radula has been lost.
Source: Campbell, Neil A., & Reece, Jane B. Biology (7th edition), 2005.
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