Gdz Biologiia 7 Sumatokhin Klass Dvukhstvorchatye Molliuski -

: Swan mussels ( Anodonta ), thick-shelled river mussels ( Unio ), and giant clams ( Tridacna ).

: Consists of two symmetrical valves connected by a flexible ligament and a "lock" (hinge). gdz biologiia 7 sumatokhin klass dvukhstvorchatye molliuski

: They are filter feeders . Water enters through an inhalant siphon, passes over the gills where food particles are trapped, and exits through an exhalant siphon. : Swan mussels ( Anodonta ), thick-shelled river

: As filter feeders, they clean bodies of water by removing organic suspension. : Swan mussels ( Anodonta )

: Species like oysters, mussels, and scallops are important food sources for humans and marine life.