Gdz Biologiia 7 Sumatokhin Klass Dvukhstvorchatye Molliuski [VERIFIED]

Урок 2: Классы моллюсков - Ростелеком Лицей

: The body is laterally compressed and divided into two main parts: the trunk and the wedge-shaped foot . Unlike gastropods, bivalves lack a head, tentacles, and eyes. gdz biologiia 7 sumatokhin klass dvukhstvorchatye molliuski

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