Snail Wallpaper

About Snail Wallpaper Android App

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Snails vernacular possessing outer shell of gastropods. Gastropod molluscs with rudimentary shell or completely lost its called slugs. Since most of the gastropods has a sink snails are often referred to all members of the class. The body of the snail is isolated head leg and splanchnic bag which departs from the mantle fold.

Snails move on the bottom surface of foot banishing of its wavelength muscle contractions. Moreover epithelia legs separates a large amount of slime better conducive to sliding over the surface of the substrate. Small snails are able to move due to the beating of cilia.

Splanchnic bag is enclosed in a mantle allocated calcareous shell twisted in a spiral or having the shape of the cap. The structure of this part of the body violates the bilateral symmetry of the body. External asymmetry characterizes only part of the representatives. It happens due to turbospiralnoy the shell shape and direction of water flow bringing oxygen and chemical signals to the gills and sensory organs located mantle cavity from left to right. Internal asymmetry the result of the rotation occurred during evolution sinks.

Snails are spread all over the world. The greatest number of species live in the coastal zone of tropical and subtropical seas.

The meat of some species such as snail is used in food. The shells are used as souvenirs. Many species of snails specific host for a number of parasitic invertebrates such as trematodes. Some species may be a natural focus of hazardous human diseases such as schistosomiasis and opistorhoz.

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