A bivalve is characterized by possessing two shells secreted by a mantle that extends in a sheet on either side of the body. |
Mactridae, also known as surf or trough shells or duck clams, is a family of marine bivalve clams of the order Veneroida. |
Now explain how a univalve differs from a bivalve, in more ways than just the number of shells. |
The smaller waders will feed on the bivalve molluscs and the little worms and that that are actually in the mud and sand. |
The hinge ligament of bivalve shell is an example of a complex development. |
Thus, they are mechanically much weaker than other bivalve shells and are easily fragmented after break-down of the organic matter. |