What characteristics are shared by all mollusks?

Mollusks have a soft body and share several characteristics, including a muscular foot, a visceral mass of internal organs, and a mantle.

What are 3 things all mollusks have in common?

WHAT FEATURES DO MOLLUSKS HAVE IN COMMON? As well as a shell, most mollusks have a muscular foot for creeping or burrowing. Some also have a head with sense organs. The soft body includes lungs or gills for breathing, and digestive and reproductive parts, all enclosed by a skinlike organ called the mantle.

What are the 4 basic features of all 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.

What do all mollusks have?

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. Mollusks live nearly everywhere on Earth.

What two features do all mollusks have?

Mollusks are invertebrates such as snails, scallops, and squids. Mollusks have a hard outer shell. There is a layer of tissue called the mantle between the shell and the body.

Which characteristic do all mollusks have quizlet?

Mollusks all have a mantle, a shell secreted by the mantle, a visceral hump, a foot, and a radula. Mollusks are different from other phyla because they have these things, most of which are unique to the phylum Mollusca.

What are the four major characteristic features of molluscs quizlet?

The four major characteristic features of mollusks are:
  • A protective shell.
  • A Mantle.
  • A visceral mass.
  • A foot for locomotion.

What are the basic parts of mollusk?

Body parts of a Mollusca:
  • There are three distinct body parts in Mollusca.
  • The head, muscular foot, and visceral hump are the body parts of a Mollusca.

What best describes a mollusk?

mollusk, also spelled mollusc, any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body.

Do all mollusks have a shell?

Bivalves are mollusks with two shells such as clams and oysters. Univalves are animals with one shell such as a snail. Mollusks without shells include squid, banana slugs, and octopi. Some mollusks are terrestrial, occurring in most environments on earth, while others live in the water for some or all of their life.

What are the 7 classes of mollusks?

  • Delicate bodied, triploblastic, reciprocally even, and coelomate creatures have a place with the phylum Mollusca.
  • Mollusks can be segregated into seven classes: Aplacophora, Monoplacophora, Polyplacophora, Bivalvia, Gastropoda, Cephalopoda, and Scaphopoda.

What are the 8 classes of molluscs?

The Phylum Mollusca consist of 8 classes: 1) the Monoplacophora discovered in 1977; 2) the worm-like Aplacophora or solenogasters of the deep sea; 3) the also worm-like Caudofoveata; 4) the Polyplacophora, or chitons; 5) the Pelecypoda or bivalves; 6) the Gastropoda or snails; 7) the Scaphopoda, or tusk shells; and 8) …

Is jellyfish a mollusk?

Octopus and jellyfish are aquatic invertebrates. Because of the different anatomy and physiology of these two organisms, they are categorized under different phyla. Octopus is categorized under Phylum Mollusca while Jellyfish is categorized under Phylum Cnidaria.

How do you classify mollusks?

Living mollusks are usually grouped into eight classes: Gastropoda (see gastropod), Bivalvia or Pelecypoda (see bivalve), Cephalopoda (see cephalopod), Scaphopoda (tusk shells), Aplacophora (Solenogasters), Caudofoveata (sometimes included in the Aplacophora order), Polyplacophora (chitons), and Monoplacophora.

What are the 4 parts of mollusks body?

The four important body parts in the mollusk could be listed as: Shell, Mantle, Visceral Mass and Foot.