The Mollusca are a LARGE phylum of invertebrate animals which includes Bivalves (which filter feed), Gastropods (which have radulae and even some with poison harpoons), Cephalopods, Squid and Octopus (Which have beaks and arms with suckers and hooks), Aplacophora (some of which are parasites). There are probably more ways in which mollusca have found to fee than has been mentioned here but his answer gives you an appreciation of the range of methods that have evolved.
Bivalves are mollusks with two shells, such as a clam. A univalve is a mollusk with one shell, such as a snail.
Bivalves, univalves, and cephalopods are all types of mollusks. So are gastropods.
yes
no
George W. Tryon has written: 'A monograph of the fresh-water univalve mollusca of the United States' -- subject(s): Gastropoda, Mollusks
omnivore
There is no such animal as a "univalve", however "bivalves" are filter feeders and filter seawater through their gills to pick up trace amounts of food.
They feed on mollusks, worms and other benthic organisms.
yes they are venomous relatives of sharks and they bottom feed on mollusks
mollusk
The limpet has only one shell, making it a univalve. Molluscs with two shells, such as clams and mussels, are bivalves.
Some mollusks, like certain species of snails and clams, may feed on algae. Others, like some species of bivalves, may filter feed on plankton by drawing water into their bodies and trapping plankton to feed on. It ultimately depends on the specific species of mollusk.