You've seen maybe even eat animals such as: shellfish, snails, snails, squid or squid. Or maybe you at home collect various types of ornaments from the shells are so beautiful. All these animals are Mollusca species. Indeed Mollusca is an animal that is familiar with human life, because this type of animal is used as a nutritious food or for jewelry. These animals live on land, fresh water and in the sea.
which has a radula (tongue scar) up to the open anus in the mantle cavity area. In addition there are also digestive glands that have developed well. This open circulation occurs in all Mollusca classes except the Cephalopod class.
Breathing is done by using the gills or "lungs", the mantle or by the epidermis. Kidney excretion tool. The nervous system consists of three pairs of ganglion, the cerebral ganglion, the visceral ganglion and the ganglion pedal, all of which are connected by longitudinal nerve cords. The reproduction apparatus is generally separate or united and internal or external.
