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chitons
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∙ 13y ago
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Why do the shell has eight plates?
Chitons have a tail shell which is made of eight separate shell plates or valves. The plates overlap but are articulated, providing protection but allowing freedom of movement.
Is a cobra an mollusk?
A mollusk is a sea creature that lives within a shell. A cobra does not live in a shell.
What do Mollusk use for protection?
THey use a shell
What is the function of mollusk hard outer shell?
the function of the its shell is to protect the mollusk's very vulnerable and sensitive organs.
How are seashells formed?
Most mollusks have shells outside their soft bodies. The shell is a mollusk's skeleton. It is part of the animal and the mollusk is attached to it by muscles. The soft animal inside can never leave its shell and come back to it. The shell is made of a form of limestone and is built by the mollusk itself. Certain glands in the mollusk are able to take limestone from the water and deposit it in tiny particles at the edge of, and along the inside of, the shell. As a mollusk grows in size, its shell increases in thickness and size. The shell of a mollusk consists of three layers. The outside is covered with a thin layer of hornlike material that contains no lime. Under this is a layer of carbonate of lime. The inside layer is the "mother-of-pearl", or nacre. It is made up of very thin alternate layers of carbonate of lime and a horny substance. The coloring of the shell comes from some glands of the mollusk that contain coloring matter. So a shell may be spotted, all one color, or marked with lines.
What mollusk has no shell?
Every mollusk except slugs, which have evolved to not need a shell, has a shell. Snails, clams and other bivalves have an external shell. Octopi, squid and cuttlefish have an internal shell.
Is a mollusk born with a shell?
yes
Is there a scientific name for a mollusk shell?
no
What is a land mollusk with no shell?
slug
What is the shell opening of a mollusk?
jellyfish
What is body covering of mollusk?
A shell
Is a seahorse a mollusk?
No, a seahorse is not a mollusk. Seahorses belong to the animal group called fish, specifically within the family Syngnathidae. Mollusks, on the other hand, are a separate group of invertebrates that include creatures like snails, clams, and octopuses.
