CHM 2045 Lecture Notes - Lecture 2: Cephalopod, Bivalvia, Conchiolin
The structure that is used for locomotion and has a great variety among
Molluscs is: Foot
The structure that is used for ingestion that tears and grates food items is:
Radula
The part of the mollusc that contains the internal organs is the: Visceral Mass
The larval stage common to all molluscs is the: trochopore
The structure that produces the shell in molluscs is the: mantle
The structure that produces a variety of pigments for molluscs is the:
Chromatophore
The structure that plugs the opening to a snail's shell is the: Operculum
The structure that supplies the muscles of the foot with nerve impulses For
movement is the:
Pedal cord
The class of molluscs that contains the slugs, whelks, and snails is the:
Gastropoda
The class of molluscs that contains the clams and oysters is the: Bivalvia
The class of molluscs that contain octopi and squid is the: Cephalopoda
The class of molluscs that contain Chitons is the: Polyplacophora
The class of molluscs that contain a foot divided into tentacles is the:
Cephalopoda
The class of molluscs that lack cephalization and are filter feeders is the:
Bivalvia
Which animal is an example of an errant polychaete?: Bearded Fireworm
Chitons, scaphopods, Gastropods, bivalves, cephalopods all belong to the
phylum: Mollusca
Animals covered by eight overlapping plates on their dorsal surface are:
chitons
Which layer of the modus can shell is secreted continuously? (Responsible for
forming pearls):
Nacreous Layer
(Blank) possess a soft body covered with a mantle: Molluscs
Nudibranchs belong to the class (blank) of the phylum Mollusca: Gastropoda
All of the following molluscs have a radula except?: Bivalvia
What is the class for the Scaphopods?: scaphopoda
The visceral mass of molluscs does not contain the: excretory system
The most common marine annelids are: polychates
The outermost layer of the molluscan shell that is composed of the protein
Conchiolin?:
Periostratcum
Nudibranchs have (blank) on their surface for gas exchange.: cerata
Document Summary
The structure that is used for locomotion and has a great variety among. The structure that is used for ingestion that tears and grates food items is: The part of the mollusc that contains the internal organs is the: visceral mass. The larval stage common to all molluscs is the: trochopore. The structure that produces the shell in molluscs is the: mantle. The structure that produces a variety of pigments for molluscs is the: The structure that plugs the opening to a snail"s shell is the: operculum. The structure that supplies the muscles of the foot with nerve impulses for movement is the: The class of molluscs that contains the slugs, whelks, and snails is the: The class of molluscs that contains the clams and oysters is the: bivalvia. The class of molluscs that contain octopi and squid is the: cephalopoda. The class of molluscs that contain chitons is the: polyplacophora.
