Mollusc Review Flashcards
Gastropod
A mollusk with one shell and a broad muscular foot on its stomach side
Cephalopod
Molluscs that have tentacles and are highly motile; internal shell present;Intelligent; Carnivore
Polyplacophora
separate shell plates surrounded by thick membranous mantle; edible;open cir. system
Bivalvia
Molluscs where mantle manufactures the shell; soft bodied animals w 2 hard outer shells that open and close like a door
Radula
All mollusks except BIVALVES; used to scrape algae off rocks, can act as drill w/poison to pierce shells during full carnivore mode
Siphon
In all mollusks except Polyplacophora; used for exchanging of liquids and air (breathing, locomotion, feeding, repro.)
Funnel
Channels liquids or grainy substances into containers w/ small opening
Mantle
Thin, delicate that covers the body of the mollusk, like a cloak
Nacre
Lines the inner shell, coats particles and create a pearl
What class(es) are filter-feeders?
Bivalves
What class(es) are most intellgient
Cephalopoda
What class(es) make pearls
Bivalves
What class(es) are poisonous
Cephalopoda and Gastropoda
Class of Snail
Gastropoda
Class of Slug
Gastropoda
Class of Nautilus
Gastropoda
Class of Cuttlefish
Cephalopoda
Class of Oyster
Bivalvia
Class of Scallop
Bivalvia
Class of Nudibranch
Gastropoda
Class of Mussel
Bivalvia
Class of Conch
Gastropoda
Class of Clam
Bivalvia
Class of Abalone
Polyplacophora
Class of Chiton
Polyplacophora
Class of Squid
Cephalopoda
Class of Octopus
Cephalopoda
Characteristics ALL molluscs have
Bilateral Symmetry, invertebrate
How pearls are made
When sand grins or foreign particles are covered in “mother of pearl” (material used to keep shell smooth)
What are sequential hermaphrodites? Which classes does this apply to?
They produce sperm and eggs at different points in life or if there is not enough members of opposite sex; Gastropoda & Bivalvia
