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Phylum Mollusca. The type of symmetry that mollusks have is bilateral symmetry. Meaning that the two sides are related. The picture shows muscular foot,visceral mass and the mantle. The mantle is a layer of tissue that covers the visceral mass and in many molluscs it contains glands which secrete a hard shell. via
Is Mollusca a bilateral symmetry?
Mollusks have bilateral symmetry. – The two halves of the body mirror each other. Gastropods (snails) ~ eat with a radula (tiny tongue covered with teeth. via
What type of symmetry does Mollusca have?
What type of symmetry do Mollusks have? They have bilateral symmetry. via
What type of symmetry do the members of the Mollusca phylum have?
Mollusks are generally considered a phylum of bilaterally symmetrical animals, although there are also many asymmetrical species. via
Do molluscs have radial symmetry?
These creatures are radially symmetrical, meaning all their appendages emanate outward from a central point. Most mollusks, on the other hand, exhibit bilateral symmetry. via
In which class of Mollusca bilateral symmetry is absent?
They are bilaterally symmetrical, but some gastropod are assymmetrical. Head bears a terminal mouth, eyes, tentacles and other sensory organs. It is absent in the Pelecypoda and the Scaphopoda. via
Does porifera have symmetry?
Asymmetry. Only members of the phylum Porifera (sponges) have no body plan symmetry. via
What makes mollusks unique?
All molluscs also have gills, a mouth and an anus. A feature unique to molluscs is a file-like rasping tool called a radula. This structure allows them to scrape algae and other food off rocks and even to drill through the shell of prey or catch fish. via
Is Mollusca a Pseudocoelomate?
Protostome Coelomates: The Phylum Mollusca
Animals in the phylum Mollusca include clams, snails, octopuses, and sea slugs (pictured right). They are all protostome coelomates. via
Do all molluscs have a mantle?
All mollusks have a thin layer of tissue called a mantle which covers their internal organs. The mantle produces the mollusk's shell. Clams, oysters, snails, and octopuses are all mollusks. via
Is Mollusca asymmetrical?
Mollusks and mollusks are members of the phylum family. Various species of mollusks found in the land or freshwater. It consists of the form of bilaterally symmetrical found in the torsion body. But some organisms have an asymmetrical body and occurred in the larval stage in the torsion. via
Are mollusks vertebrates?
Mollusks are invertebrates that have a mantle -- a body structure that excretes a shell or protective coating for the animal. via
Is a squid a Mollusca?
Cephalopods are a group of molluscs that include the pearly chambered Nautilus, squids, and the octopus. They can be divided into three categories: the Nautiloidea (chambered Nautilus), the Ammonoidea (the extinct ammonites), and the Dibranchiata (squids, the extinct belemnites, and octopuses). via
How do bivalves eat without a head?
Bivalves don't have a head. They feed by filtering out food from the water in which they live. They actually eat with the same structure used for breathing: the gills. Tiny particles of food get caught in the gills and cilia near the gills move the particles into the mouth. via
Are echinoderms considered mollusks?
Mollusks are a separate phylum of animals. Although both phyla are made up of invertebrates, differences in their anatomy are why starfish are classified as echinoderms and not mollusks. Echinoderms have spiny skin and many physical attributes that are unique in the animal kingdom. via
Is a jellyfish a mollusk?
Ans: Phylum mollusca include soft bodied animals with hard shell Eg: snails, octopus, mussels, oysters. Phylum Coelenterata contain special structure called coelenteron where the food digested.It include jelly fish and sea anemones. via