What is gastropod?
and gastropod is the only valve (shell), a soft body animal belonging to the phylum Mollusk . Gastropods, which are also known as univalves or gasteropods , are the largest class belonging to the Mollusk family. Estimates of how many types of gastropod live today from 65,000 to 90,000. The name gastropod is derived from the Greek words gaster , which means the stomach and Say , which means legs. The snail and slugs, freshwater and salt water, and other animals that produce twisted shells such as Conches, Abalones, Cowries and Lipette belong to the gastropod class.
The most identifiable physical characteristics of gastropod is the "torsion" process. During its growth and development, the internal organs rotate by 180 °, so the rectum migrates just above the head of the gastropod. It has either two or four tentacles that are used for sensory purposes. While several gastropods may have more sophisticated EANO, most of them have simple eyes on the tip of the tentacle whoThey can only recognize light and dark.
Another feature that distinguishes gastropod is its ventral or muscle leg-foot leg has a gland that eliminates a mucosa similar to liquid that makes it easier to move. Although most slugs do not have a characteristic shell, most gastropods have a spiral shell on the right side, made of corner or calcium material.
Most of us only come into contact with a typical garden snail or slug, but almost two -thirds of gastropods live in water, fresh and salt. Usually the gastropod is herbivorous, feeding on decaying plant matter, but some are actually carnivorous. Most of them have a radula, a stuh-like the tongue of the "system" that pruns and chews the animal's food before browsing the esophagus. Burrowing Gastropods Siphon Water to get food and oxygen siphoning tubes.
Most water dwellings in gasTropods have gills, but some water and most types of land actually have oxygen breathing lungs. A garden player or slug is usually brown for camouflage purposes, but some sea slugs are clearly colored, disheveled animals that were supposed to fade into a colorful reef, or warn predators of a nasty sting or poisonous body.
with so many different types of gastropod is a large dispersion of size. The snail can range from 0.02 inches (<1 mm) to 30 inches (77 cm). The largest land worm is a giant African snail, measuring almost 16 inches long (39 cm) and weighs two pounds (900 g).