2006-08-10 14:54:06 · 6 answers · asked by gottalotgoinon 1 in Science & Mathematics ➔ Biology
Yes, the come from live organisms that secrete mineral deposits to form that outer protective shell, like an exoskeleton in a way...
We do the same thing, but have an internal skeleton made of calcium and phosphate.... shells are different from our bones, but not too different.
2006-08-10 15:58:24 · answer #1 · answered by Stephanie S 6 · 0⤊ 0⤋
Most shells come from the remains of organisms that metabolized calcium or calcium carbonate to create a protective covering for the body . The shell sometimes is used as a exoskeleton like that in a lobster or clam or mollusk. When the creature dies the shell is left . Most beaches are made of millions of shells broken down into little fragments and mixed in with sand. Ususally the whiter the beach ,the more shell is in with the sand.
2006-08-10 22:05:52 · answer #2 · answered by Buzz and Gang 2 · 1⤊ 1⤋
The shells are, for the most part, made by the organism you find inside it. It acts as a protective coating.
Just like you or I make skin, they make shells. Of course, it's made from different material, but the concept is the same.
2006-08-10 23:01:47 · answer #3 · answered by dpfw16 3 · 0⤊ 0⤋
Well, shells you find on the beach come from living organisms that shed them as they grow bigger. They use them like a skull to protect the important parts inside.
However, stuffed shells come from Italy. The living organism that makes them is the human.
2006-08-11 00:07:05 · answer #4 · answered by Anonymous · 0⤊ 0⤋
All shell fish and crustaceans shed their shells as they grow, at each stage of their growth. New shells grow with them.
2006-08-10 22:00:50 · answer #5 · answered by ed 7 · 1⤊ 0⤋
that is a great mystery. they just wash up on the beach and nobody has been able to figure out where they come from.
2006-08-10 22:00:30 · answer #6 · answered by Vodka 3 · 0⤊ 3⤋