Animalscaretips
- What does mollusk literally mean?
- What are molluscs in English?
- What is a mollusc used for?
- What is a mollusc give two examples?
- What does arthropod literally mean?
- What does mollusk fossil mean?
- What is the difference between mollusc and mollusk?
- Is Oyster a mollusc?
- What is the meaning of the word cephalopod?
- What best describes a mollusk?
- How do molluscs breathe?
- Is Crab a mollusk?
- What are the respiratory organs of molluscs?
- What animals are mollusk?
What does mollusk literally mean?
Mollusca, meaning “soft-bodied,” is one of the largest phylums in the animal kingdom. The word mollusc (or mollusk) derives from the Latin word “mollis,” which means “soft.” There are an estimated 200,000 species of mollusk worldwide accounting for nearly a quarter of all marine life.
What are molluscs in English?
A mollusc is an animal such as a snail, clam, or octopus which has a soft body. Many types of mollusc have hard shells to protect them. COBUILD Advanced English Dictionary.
What is a mollusc used for?
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.
What is a mollusc give two examples?
clams, mussels, oysters, and scallops (class Bivalvia) octopi, squid, cuttlefish, and nautili (class Cephalopoda) snails and slugs (class Gastropoda)
What does arthropod literally mean?
An arthropod is an animal with no internal spine, a body made of joined segments, and a hard covering, like a shell. ... The Modern Latin root is Arthropoda, which is also the name of the animals' phylum, and which means "those with jointed feet."
What does mollusk fossil mean?
Molluscs are animals like mussels, clams, snails, slugs, cuttlefish and octopus. They include extinct creatures such as ammonites and belemnites. ... Mollusc fossils are usually well preserved because of their hard shell. But those without a shell, such as the slug and octopus, are rarely found as fossils.
What is the difference between mollusc and mollusk?
As nouns the difference between mollusk and mollusc
is that mollusk is (us) (mollusc) while mollusc is a soft-bodied invertebrate of the phylum mollusca, typically with a hard shell of one or more pieces.
Is Oyster a mollusc?
Molluscs are animals with a soft body and no spine. ... Examples of molluscs include; Clams, Cockles, Oysters and Cuttlefish.
What is the meaning of the word cephalopod?
: any of a class (Cephalopoda) of marine mollusks including the squids, cuttlefishes, and octopuses that move by expelling water from a tubular siphon under the head and that have a group of muscular usually sucker-bearing arms around the front of the head, highly developed eyes, and usually a sac containing ink which ...
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.
How do molluscs breathe?
Mollusks have a coelom and a complete digestive system. ... Aquatic mollusks “breathe” under water with gills. Gills are thin filaments that absorb gases and exchange them between the blood and surrounding water. Mollusks have a circulatory system with one or two hearts that pump blood.
Is Crab a mollusk?
Shrimp and crabs are not mollusks. They belong to the phylum Crustacea. Crustaceans are not true filter feeders like clams, mussels, oysters, and scallops in the phylum Mollusca, subphylum Bivalvia, and typically do not filter dinoflagellates for food.
What are the respiratory organs of molluscs?
The respiratory organs encountered in Molluscs are mainly the ctenidia and the lungs or pulmonary sac. The outer covering of the body and mantle usually act as accessory respiratory organs. Skin appears to be the simplest type of respiratory structure encountered in Molluscs.
What animals are mollusk?
Molluscs have more varied forms than any other animal phylum. They include snails, slugs and other gastropods; clams and other bivalves; squids and other cephalopods; and other lesser-known but similarly distinctive subgroups.
