Zoo Lab Quiz #5 Non-Cephalopods


In the class Gastropods each twist is called a ______ the combinde twists are called ______.


whorl, spire


In Gastropodsthe big opening of the shell is called the _____.


apeture


In snails the foot is primarily used for ______.


locomotion


In snails the ______ is a hole into the mantle cavity used for respiration.


pneumostome


The primary function of the mantle is _____


protection


In clams and snails the circulatory system is _____.


open


Clams are a member of what class?


Bivalvia


What's the function of the Rhinophore on snails?


Chemoreception


Snails belong to what class?


Gastropda


Chitons belong to what class?


Polyplacophora