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Some bivalves are epifaunal: that is, they attach themselves to surfaces in the water, by means of a byssus or organic cementation. Others are infaunal: they bury themselves in sand or other sediments. These forms typically have a strong digging foot. Some bivalves can swim.
Chitons creep along slowly on their muscular feet and cling to rocks.
Most snails move by gliding along on their muscular foot, which is lubricated with mucus. This motion is powered by succeeding waves of muscular contraction which move down the undersurface of the foot. They produce mucus in order to aid locomotion by reducing friction, and the mucus also helps reduces the snail's risk of mechanical injury from sharp objects.
What else can I help you with?
How are bivalves different from mollusks?
Bivalves are a class of mollusks that have two shells hinged together, while mollusks are a diverse phylum of invertebrates that include bivalves, snails, and octopuses. Bivalves primarily feed through filter feeding by pumping water in and out of their shells, while other mollusks have various feeding methods.
How are bivalves and Cephalopods alike and different?
Gastropods (such as slugs and snails) and bivalves (such as clams and mussels) are both invertebrate mollusks.
How do clams and bivalves vary from other mollusks within the phylum Mollusca?
Clams and bivalves are part of the class Bivalvia within the phylum Mollusca, distinguished by their two-part hinged shells and lack of a distinct head and radula, which are characteristic of other mollusks like gastropods and cephalopods. While other mollusks often exhibit complex behaviors and advanced nervous systems, bivalves are primarily filter feeders with a simpler anatomy. Additionally, bivalves are mostly sessile or burrowing, whereas many other mollusks are mobile and exhibit more diverse habitats and lifestyles.
What are mollusks that have two shells held together by hinges and strong muscles called?
they are called bivalves .(:
Three main classes of mollusks?
bivalves gastropods cephalopods
What does bivalves mean?
two leaves - it refers to the clams, oysters and other mollusks that have two parts to their shell. fu
What is one way that cnidarians and mollusks differ?
Mollusks are defined as Bivalves. They are called Bivalves because they have two shells. Cnidarians such as Jelly Fish do not have shells which define a bivalve (mollusks).
Of the major classes of mollusks the one that contains sessile filter feeder is?
bivalves
Are clams bivalves?
Yes, clams are bivalves. Bivalves are a class of mollusks characterized by having a shell with two hinged valves. Clams have two shells that they can close tightly to protect themselves.
What do bivalves look like?
Bivalves are mollusks with two hinged shells that they can close for protection. They come in various shapes and sizes, and their shells can have different colors and patterns. Bivalves do not have a distinct head or radula but have a muscular foot for movement and feeding.
Are squids bivalves?
No; squid, cuttlefish, octopuses, and nautiluses are mollusks, and more specifically, cephalopods.
Is a oyster a mollusks?
The common name oyster is used for a number of different groups of bivalve mollusks. Bivalves are mollusks belonging to the class Bivalvia. They have two-part shells, and typically both valves are symmetrical along the hinge line. The class has 30,000 species, including scallops, clams, oysters and mussels. Other names for the class include Bivalva, Pelecypoda, and Lamellibranchia.
