Exam 11: Molluscan Success

Chitons belong to the molluscan class

In the bivalves,gas exchange takes place through the

The shell-secreting organ of bivalve mollusks is the

Solenogasters are cylindrical molluscs that lack a shell; they are carnivores and

The modified veliger of some freshwater bivalves is called the

Cephalopods typically locate prey by

The class of molluscs that contains the most species is the class

There are roughly ___________ described species in the phylum Mollusca.

Tooth shells belong to the molluscan class

The circulatory system of most molluscs is

The gastropod larval stage in which torsion occurs is called the

The 180 ^$\circ$ ,counterclockwise twisting of the visceral mass,mantle,and mantle cavity of gastropods is called

The adaptation of bivalves to sedentary,filter feeding life-styles involved loss of the __________ and the radula.

Molluscs are

The most complex molluscs belong to the class

The tentacle of male cephalopods that is modified for spermatophore transfer is the

Neopilina represents the molluscan class __________,that was known only from fossils until 1952.

In the bivalves,final digestion occurs

The shell of a mollusc is secreted by the

Pigment cells of cephalopods are called