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Is a nautilus a mollusk?
Yes, it is a mollusk because mollusks are squid or octopus-like creatures. Mollusks have a variety of ways to create a shell. Some mollusks have shells on the outside, such as a variety of gastropods. The Nautilus is one of the first cephalopods, which traditionally do not have an exoskeleton shell, which does have an outer shell covering.
What are biavalves?
Bivalves are mollusks with two shells, such as a clam. A univalve is a mollusk with one shell, such as a snail.
Why are snails called Univales and crabs called bivalves?
Valve means shell. A snail is a univalve because it only has one shell. Crabs are not considered bivalves. The bivalves are a group of mollusks which includes clam, mussels, and oysters, all of which have two shells enclosing the animal, hence their classification as bivalves.
When do mollusks grow their shells?
When a mollusk grows out of it's shell, it will scramble to find a new one, since it is extremely vulnerable when it has no shell, which is it's main defense.
Is the nautilus a mollusk?
Yes, it is a mollusk because mollusks are squid or octopus-like creatures. Mollusks have a variety of ways to create a shell. Some mollusks have shells on the outside, such as a variety of gastropods. The Nautilus is one of the first cephalopods, which traditionally do not have an exoskeleton shell, which does have an outer shell covering.
Are mollusks segmented?
No ......mollusks are not segmented,like insects....just their body is partitioned into head, foot, and visceral hump..........but one can't take it as segmentation.........
What is one way that cnidarians and mollusks differ?
Mollusks are defined as Bivalves. They are called Bivalves because they have two shells. Cnidarians such as Jelly Fish do not have shells which define a bivalve (mollusks).
How many shells have Hydrogen?
Hydrogen has one shell.
Are snails insects?
No, snails are in the animal group called mollusks. This group includes, slugs, clams, oysters, octopuses, sea slugs, cuttlefish, squid and the nautilus. What makes these animals mollusks and not insects is the fact that they are soft bodied with either one large foot, or multiple tentacles, and have a shell, or a remnant of a shell inside they're body. They also have a mantle and some have a radula, which is a small curved mouth with a rough inside that is used to scape off plant material to eat.
Where do hermit crab shells come from?
Do they grow there shell? Are they attached to it? Hermit crabs do not grow there own shell. They find discarded shells from other creatures like mollusks and move in to them. They hold on to the shell with their uropod at the end of their tail.This information was courtesy of http://www.thecrabbagepatch.com/faq.html
What is a molluscum?
A molluscum contagiosum (MC), sometimes called a water wart, is a viral infection of the skin that can be spread by contact, to other areas or to other people. The virus does not have a dormant stage.
Do sea snails shed the conch and move into a new conch?
No, a conch is a mollusk which lives in a conch shell ,which it secretes itself. As the conch grows the shell gets bigger too, to accommodate it. Sea snails tend not to have any shell at all and if they do have a shell it is one that they secrete themselves. Hermit crabs live in the empty shells of mollusks and move to a new shell as they grow bigger.
