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.
1 Gastropods (Gastropoda) - There are between 60,000 and 80,000 species of gastropods alive today. 2  Gastropods are the most diverse of the mollusk groups. 3  Members of this group include limpets, top shells, periwinkles, sundial shells, sea hares, nudibranchs, snails and slugs.ollusks are classified within the following taxonomic hierarchy: Animals Invertebrates. Mollusks are divided into the following taxonomic groups: 1  Caudofoveates and solanogastrates (Aplacophorans) - There are about 70 species of caudofoveates and 250 species of solanogastrates alive today.