General Mollusca
Soft‑bodied invertebrates with bilateral symmetry belong to which phylum?
What is Mollusca?
“Gastropod” translates to this phrase.
What is “stomach foot”?
“Bivalve” means this.
What is “two shells”?
“Cephalopod” means this.
What is “head foot”?
This structure covers the visceral mass and creates a cavity for gills.
What is the mantle?
Most mollusks live in this type of environment.
What is aquatic?
Gastropods move using this structure that produces mucus.
What is the muscular foot?
Name two examples of bivalves.
What are clams, oysters, mussels, or scallops?
Cephalopods are considered some of the most intelligent invertebrates because they can do these things.
What are problem‑solving, learning, memorizing, and using tools?
Clams use this structure to dig into sand or mud.
What is the foot?
Name the three major classes of Mollusca.
What are Gastropoda, Bivalvia, and Cephalopoda?
Most gastropods have this type of shell.
What is a single, coiled shell?
Bivalves feed using this method.
What is filter feeding?
Cephalopods move using this structure.
What is the siphon?
Scallops move by doing this.
What is clapping their shells together?
This structure is the central body region containing the organs.
What is the visceral mass?
Gastropods are found in these three environments.
What are marine, freshwater, and terrestrial?
These structures act as pumps to bring water in and out of the body.
What are siphons?
Cephalopods have this type of circulatory system.
What is a closed circulatory system?
Oysters improve water quality through this process.
What is filtration?
This tongue‑like feeding organ is covered in rows of tiny teeth.
What is the radula?
Many gastropods are hermaphrodites. What does that mean?
They have both male and female reproductive structures.
This organ system helps bivalves catch food in their gills and absorb it.
What is the digestive system (intestine/stomach/gills working together)?
Some cephalopods use this for camouflage or mating displays.
What is ink or coloration changes?
This organ stores food before it moves to the stomach.
What is the crop?