What are two examples of animals that are molluscs?
Classification
| Class | Major organisms |
|---|---|
| Gastropoda | all snails and slugs including abalone, limpets, conch, nudibranchs, sea hares, sea butterflies |
| Bivalvia | clams, oysters, scallops, geoducks, mussels, rudists† |
| Polyplacophora | chitons |
| Cephalopoda | squid, octopuses, cuttlefish, nautiluses, Spirula, belemnites†, ammonites† |
What are 6 mollusks examples?
Class Gastropoda – snails, slugs, limpets, whelks, conchs, periwinkles, etc. Class Bivalvia – clams, oysters, mussels, scallops, cockles, shipworms, etc. The Class Scaphopoda contains about 400 species of molluscs called tooth or tusk shells, all of which are marine.
What are molluscs give two examples?
Molluscs include mussels, scallops, oysters, periwinkles, whelks, squid, clams, snails, and octopus.
What are 2 major types 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.
Is a jellyfish a mollusk?
question_answer Answers(2) 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.
Why is Snail a Mollusca?
The Class Gastropoda (in Phylum Mollusca) includes the groups pertaining to snails and slugs. The majority of gastropods have a single, usually spirally, coiled shell into which the body can be withdrawn. The shell of these creatures is often what is recovered in a fossil dig.
What are 3 characteristics of mollusks?
Main characteristics of Mollusca :
- Unsegmented soft body with bilateral symmetry.
- Presence of an internal or external shell.
- A toothed tongue (made mostly of chitin) called the radula.
- A mantle which is a fold in the body wall that lines the shell.
- Muscular foot (and/or tentacles in some).
Do mollusks breathe?
Essentially all molluscs inhale by gills that are called ctenidia (comb gills) on account of their brush-like shape. In earthbound molluscs this breath organ is decreased, yet at the same time breath happens in the pallial cavity.
What are 3 examples of molluscs?
Clams, oysters, snails, and octopuses are all mollusks. Mollusks live nearly everywhere on Earth. Most live in water, but some live on land, usually in damp places. Most mollusks move with a muscular structure called a foot.
Do all molluscs have eyes?
Molluscs have eyes of all levels of complexity, from the pit eyes of many gastropods, to the pinhole eyes of the Nautilus, to the lensed eyes of the other cephalopods. Compound eyes are present in some bivalves, and reflective ‘mirrors’ have been innovated by other lineages such as scallops.
What are the 3 types of mollusks?
The three main types of mollusks most people are familiar with are: cephalopods – squid, octupus, etc; gastropods – snails and slugs including abalone ; and bivalves – like clams, oysters, and scallops. But there are five other living classes of mollusks and two extinct classes.
What are the important characteristics of Mollusca?
One of the characteristics of mollusca is having a soft body and is protected by a hard shell that is bilaterally symmetrical.
What do mollusks typically have?
Mollusks are soft bodied animals that usually have an internal or external shell such as snails, slugs, clams, squids, and octopi. Many aquatic mollusks have a free-swimming larval stage called the trochopore.
Which is the largest group of mollusks?
Gastropods are the largest group of mollusks, making up 80 percent of the phylum. This group includes snails and slugs on land and abalones and conchs in the ocean.