False
Gastropods belong to the class Gastropoda, which is a class of mollusks. They are characterized by their single, coiled shell (in most species) and their distinctive method of locomotion known as crawling on a broad, muscular foot.
Slugs are gastropods. All slugs are shell-less.
Of sorts, they have what's called an exoskeleton, and it's made of sugars and proteins, not the same stuff that makes shells such as egg shells or the shells of molluscs.
No, a snail is not a bivalve. Snails are gastropods, which are a type of mollusk that typically have a coiled shell. Bivalves, on the other hand, include creatures like clams and mussels, which have a shell consisting of two parts or valves.
True
no snails to
no
In mollusks, the columella is a central, supporting structure within the shell, particularly in gastropods and some bivalves. It serves as an anchor for the shell's whorls and provides structural integrity, allowing for the shell's coiled or spiral shape. The columella also plays a role in the attachment of the soft body of the mollusk to the shell, aiding in the organism's overall stability and protection.
There is only one situation when a butterfly has a coiled shell. This is when the butterfly has died and its internals are dried up. The shell then covers the dead insides.
Sand dollars are not gastropods. Gastropods are charecterized by having a soft body with or without shell. Gastropods comes under phylum mollusca and sand dollars comes under phylum echinodermata.
If you take a rope and coil it up on a flat table, you will get the basic idea of what a coiled shell looks like. Or, you could look at a cinnamon roll which is the culinary equivalent of a coiled shell. I'm going to let you decide....does a lobster look like a cinnamon roll?
They don't have shells...you may be thinking of gastropods.