It is important to return periwinkle snail shells to where you got them from because their young will either return to that shell where they can smell their parents in, or eventually the shell will disenegrate and make good nutrients to the soil.
to see how they wiegh
What helps the common periwinkle to survive is adaptation. For instance, the periwinkle can survive being out of the water by withdrawing into their shells and closing the aperture. This will allow it to survive for several weeks.
2 kinds are apple snails, and mystery snails. I have mystery snails. Make sure they have plenty of calcium, or they're shells will crack.
pig
Periwinkles will out grow their shells, another creature will then take that shell and the periwinkle will take another old shell. This is an example of symbiosis. :)
... common shells found in the ocean or rivers. There are also flowers called "periwinkle" one species is European, another from Madagascar.
Depending on the area the rock pool is in, they could eat clams, periwinkle, mulberry shells, barnacles and sometimes small fish.
shells are important to some invertebrates groups because for some of them, that's their home
We visited the beach and collected beautiful shells that washed up on the shore.
Yes. The shells must be ground or pulverized enough for the chickens to swallow them. Shells provide an important source of calcium. Calcium is necessary for egg production and health egg shells.
Yes, conch shells have an important role in their ecosystem. The actual shell part of the conch is used to protect the aquatic creature from predators.
Shells plants o grow