Are bivalves marine or freshwater?
Bivalves (class Bivalvia) are marine and freshwater molluscs with two hinged shells (e.g., mussels, clams, oysters, and scallops) that show a diverse array of life history characteristics and perform important ecological functions (Dame 2012, Gosling 2003, Strayer 2008, Vaughn 2018).
Are all mollusks marine animals?
Most mollusks are marine animals that live in habitats from shallow coastal areas to deep waters. Most stay within the sediments at the bottom of water bodies, although a few—such as cephalopods—are free swimming.
Are bivalves herbivores?
Cards
| Term Name the characteristics of Mollusks. (5) | Definition Invertebrates Soft-bodies bilateral symmetry usually shelled most live in water |
|---|---|
| Term Are gastropods carnivores,herbivores,or omnivores? | Definition Herbivores |
| Term Do bivalves have a single shell or two part shell? | Definition Two part shell |
Are snails bivalves?
includes clams, snails, slugs, nudibranchs, squid, octopuses, tusk shells, chitons, and many others that are all generally called mollusksMollusk: A member of the phylum Mollusca; also spelled mollusc (most especially in the United Kingdom)..
How many species of bivalves are there?
20,000 species
Bivalvia is a class of mollusks that all have two shells. It includes the clams, oysters, scallops and mussels. There are over 20,000 species of bivalves around the world, and probably thousands not yet discovered. Nearly all of them live in salt water, but a few groups have evolved to live in freshwater.
What are the 4 main classes of mollusks?
The major classes of living mollusks include gastropods, bivalves, and cephalopods (Figure below).
- Gastropods. Gastropods include snails and slugs. They use their foot to crawl.
- Bivalves. Bivalves include clams, scallops, oysters, and mussels.
- Cephalopods. Cephalopods include the octopus and squid.
Are snails amphibians?
A snail is neither an insect nor an amphibian, but is instead a mollusk. The category of mollusks is a phylum, which is the level of classification…
Are octopuses mollusks?
octopus, plural octopuses or octopi, in general, any eight-armed cephalopod (octopod) mollusk of the order Octopoda. The true octopuses are members of the genus Octopus, a large group of widely distributed shallow-water cephalopods.