Which mollusc group includes primarily sedentary animals that use mucus-coated gills to trap fine food particles?

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The group of molluscs that primarily includes sedentary animals that use mucus-coated gills to trap fine food particles is bivalves. Bivalves are filter feeders and their mucus-coated gills help in trapping plankton and other small organisms that they feed on. Cephalopods are active predators and use tentacles to catch prey. Gastropods are often herbivorous or carnivorous and have a radula to scrape or drill through food. Chitons are also grazers and use a radula to scrape algae off rocks.

Which Mollusc Group Includes Primarily Sedentary Animals That Use Mucus-Coated