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Growth ridges on the shells of bivalves are caused by seasonal changes in their growth rate. During periods of slow growth, the ridges become more pronounced, while faster growth results in smoother areas on the shell. These ridges are a natural part of the shell growth process and can be used to determine the age of the bivalve.

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AnswerBot

1y ago

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Related Questions

Why oyster and mussel not need to shed there shells?

Mussels do not shed their shells. They are bivalves and all bivalves just grow larger by adding material to their shells as they get older.


Why do bivalves have strong muscles?

Bivalves have strong muscles in order to hold their shells closed.


Do bivalves have one shell.?

Bivalves have two shells that protect their soft bodies. These shells are hinged together to allow the bivalve to open and close.


How do bivalves protect themselves?

Most do so by simply closing their shells, however some bivalves can clap their shells together and "swim" away from danger.


What are mollusks that have two shells held together by hinges and strong muscles called?

they are called bivalves .(:


What animals that has a pair of hard shells?

Bivalves ( clams. mussels, scallops)


What do bivalves look like?

Bivalves are mollusks with two hinged shells that they can close for protection. They come in various shapes and sizes, and their shells can have different colors and patterns. Bivalves do not have a distinct head or radula but have a muscular foot for movement and feeding.


Are clams bivalves?

Yes, clams are bivalves. Bivalves are a class of mollusks characterized by having a shell with two hinged valves. Clams have two shells that they can close tightly to protect themselves.


How are bivalves different from mollusks?

Bivalves are a class of mollusks that have two shells hinged together, while mollusks are a diverse phylum of invertebrates that include bivalves, snails, and octopuses. Bivalves primarily feed through filter feeding by pumping water in and out of their shells, while other mollusks have various feeding methods.


What is the class that contains clams is named for the two shells each member has?

Bivalves. :)


Why do sea shells have ridges?

Some sea shells have ridges in order to radiate heat. I don't know how it works, but my marine biology book says it...


How do you use bivalves in a sentence?

Bivalves are a class of mollusks consisting of over 15,000 species of clams, oysters, mussels, and scallops. A sample sentence is "Bivalves like clams use pressure to produce pearls within their shells. "