How long should a refrigerator last? This questions is asked so many time, again and again. Most refrigerator keep operational more than 10 years. A survey conducted by the appliance magazine found out that 80% of refrigerators last 8-14 years.
Clams, Mussels and Oysters are common types of Mollusks. Mollusks are invertebrates that live in ocean, freshwater and terrestrial habitats. It is estimated that there are as many as 120,000 different species of mollusk.There are several different classes of mollusk.The most common mollusks are the gastropods (e.g., snails and slugs), the cephalopod (e.g., octopus, squid and cuttlefish) and the bivalve (e.g., clam, muscle, oyster and scallop).The Giant Squid and the Colossal Squid are the largest animals without a backbone.he most common mollusks are the gastropods (e.g., snails and slugs), the cephalopod (e.g., octopus, squid and cuttlefish) and the bivalve (e.g., clam, muscle, oyster and scallop). The Giant Squid and the Colossal Squid are the largest animals without a backbone.
Â© Jonathan Bird/ORG. For educational use only. There are over 50,000 known species of Mollusks, which makes them second only to the Arthropods in invertebrate phylum size. Among the Mollusks are some of the most well known of invertebrate sea creatures, like snails, clams, mussels, squid, and octopods.Although one might not see an obvious physical relationship between a snail and a squid, they are remarkably similar in construction.n general, mollusks have 3 body regions: a head, a visceral mass, and a foot.. The head contains the sense organs and brain, while the visceral mass contains the internal organs. The foot is the muscular lower part of the body which is in contact with the substrate.