What is the function of a snails radula?

What is the function of a snails radula?

The radula is used in feeding: muscles extrude the radula from the mouth, spread it out, and then slide it over the supporting odontophore, carrying particles or pieces of food and debris into the esophagus.

What is the function of the radula and the mantle?

The mantle cavity pumps water for filter feeding. The radula is a feeding organ with teeth made of chitin. It is located in front of the mouth in the head region. Herbivorous mollusks use the radula to scrape food such as algae off rocks.

How does a radula help mollusks obtain food?

The radula is a feeding organ with teeth made of chitin. It is located in front of the mouth in the head region. Herbivorous mollusks use the radula to scrape food such as algae off rocks. Predatory mollusks use the radula to drill holes in the shells of their prey.

What is the function of the radula in cephalopods?

Introduction. Most molluscs have a radula which is a specifically unique feeding organ that serves as a grinding mechanism to tear apart food into smaller pieces. In cephalopods, the radula consists of symmetrical rows of 7-9 teeth.

What is the function of radula give the name of the group of molluscs which do not possess a radula?

The radula is unique to the molluscs, and is found in every class of mollusc except the bivalves, who use instead cilia, waving filaments that bring minute organisms to the mouth. Within the gastropods, the radula is used in feeding by both herbivorous and carnivorous snails and slugs.

How do gastropod mollusks feed?

Gastropods feed on very small things. Most of them scrape or brush particles from surfaces of rocks, seaweeds, animals that don’t move, and other objects. For feeding, gastropods use a radula, a hard plate that has teeth.

What is the purpose of mollusk?

Mollusks are important in a variety of ways; they are used as food, for decoration, in jewelry, and in scientific studies. They are even used as roadbed material and in vitamin supplements.

How do mollusks work?

HOW DO MOLLUSKS FEED? Most mollusks have a rasping tongue called a radula, armed with tiny teeth. This scrapes tiny plants and animals off rocks or tears food into chunks. Bivalves, such as oysters and mussels, filter food particles from the water with their gills.

How does the excretory system of a mollusk work?

The excretory system of mollusks is made up of tubular organs called nephridia that filter waste from internal body fluids. Waste generated by cells within the organism is dumped into the coelom, the fluid-filled internal body cavity. The nephridia are small tubes that open into the coelom.

What is the larval stage of mollusks called?

trochophore larva
Like many invertebrates, the mollusk life cycle includes one or more juvenile or larval stages that are very different from the adult form of the animal. Both mollusks and annelids develop through a larval stage called a trochophore larva.

What is the other name for the Gill of a mollusc What is the function of Osphradium?

Answer: The other name for the gill of mollusk is CTENIDIUM. Osphradium functions as a sensory organ in some mollusks which has chemoreceptors which test the water which in ingested by the animal.

How do gastropods function as decomposers?

Most gastropods, however, are useful to humans in that they help decompose dead plants and animals into substances that can be used by plants to manufacture new organic compounds.