This is a question our experts keep getting from time to time. Now, we have got the complete detailed explanation and answer for everyone, who is interested!
Mollusca, pronounced mo-LUS-ka, comes from the Latin word molluscus, which literally translates to “soft.” This phylum was given its name by Linnaeus in the year 1758.
Who was it that first found Mollusca?
One of them will be the focus of the present book, and it is often referred to as Mollusca. The term “mollusca” was coined by the legendary Cuvier, and it comes from the Latin word “mollis,” which means “soft.” Their soft, boneless bodies clearly inspired Cuvier to come up with the phrase.
What is the origin of the name Mollusca?
Mollusca, which literally translates to “soft-bodied,” is one of the most abundant phyla in the kingdom of animals. Mollusk is derived from the Latin word “mollis,” which means “soft.” The English word “mollusc” comes from this Latin word. It is estimated that there are 200,000 different kinds of mollusks around the globe, and they make up about a quarter of all marine life.
When did mollusks first appear on Earth?
Mollusks are thought to have first appeared at the end of the Precambrian period. After then, the crown group of molluscs radiated quickly during the Cambrian explosion about 540 million years ago (Vinther, 2015), prior to the significant increase in the amount of oxygen in the earth’s atmosphere.
What is the meaning of the term Mollusca?
: a large phylum of invertebrate animals (as snails, clams, and mussels) that have a soft unsegmented body lacking segmented appendages and commonly protected by a calcareous shell.
Mollusca | Gastropods-Bivalves-Cephlapods |
34 questions found in related categories
Is a jellyfish considered to be a mollusc?
response to the query Responses
Ans: Mollusca are classified as animals with soft bodies that have a tough shell. Eg: snails, octopus, mussels, oysters. Phylum Coelenterata include a unique structure known as a coelenteron, which is responsible for digestion of food.Jellyfish and sea anemones are included in this category.
What does the word “arthropod” mean when translated literally?
arthropod Add to list Share. An animal is considered to be an arthropod if it does not have an internal spine, has a body that is made up of linked segments, and has a hard covering, such as a shell…. The name of the creatures’ phylum, which also happens to be the basis of Modern Latin, is Arthropoda. This word literally translates to “those with jointed feet.”
What kind of animal is classified as a Mollusk?
There are at least 50,000 different kinds of mollusks alive today, making this group of animals one of the most diverse on the entire world. It is composed of well-known species like snails, octopuses, squid, clams, scallops, oysters, and chitons, among others.
Why is the Snail Classified as a Mollusca?
The majority of gastropods have a single shell that is coiled, most of the time in a spiral pattern, and into which the body can be withdrawn…. During a fossil dig, the skeleton or shell of these organisms is typically what is unearthed.
Where did the ancestors of molluscs come from?
On the other hand, the Helcionellids are assumed to be early molluscs with shells that are reminiscent of snails. They were discovered for the first time more than 540 million years ago in Early Cambrian rocks from Russia and China. Mollusks with a hard shell came into existence before the first trilobites.
What color is the blood that comes from mollusks?
The majority of molluscs have blue blood because the respiratory molecule in their bodies is called hemocyanin. Hemocyanin is a type-3 copper-binding protein that turns blue when it comes into contact with oxygen. Hemocyanins found in molluscs are enormous, cylinder-shaped, multimeric glycoproteins that are found freely dissolved in the hemolymph.
Do mollusks possess mental capabilities?
Mollusks, with the exception of the cephalopods that have the most advanced brain development, do not have brains in the traditional meaning of the word. Instead, the cell bodies, or pericytes, of nerve cells are clustered together in nerve knots, also known as ganglia, in key regions of the body. In gastropods, the ganglia were previously distributed throughout the body in a more widespread pattern.
Who first thought about the Mollusca?
Mollusca, pronounced mo-LUS-ka, comes from the Latin word molluscus, which literally translates to “soft.” This phylum was given its name by Linnaeus in the year 1758. Mollusks, which include clams, snails, tusk shells, chitons, and squids, are one of the invertebrate groups that are noted for their great diversity as well as their widespread distribution.
When did the first gastropods appear on planet Earth?
The Cambrian epoch spanned approximately 541–585.4 million years ago, and it is during this time that scientists believe gastropods, bivalves, and cephalopods first appeared. Snails and slugs are colloquial names for gastropods, which are animals that belong to the class Gastropoda and can be found in terrestrial, marine, or freshwater environments.
When did the first mollusks appear?
Molluscs are an ideal group for comparative studies into how evolution has brought about phenotypic diversity from a common ancestor that roamed the oceans’ seafloors at least 550 million years ago (mya) (Parkhaev, 2008, 2017; Haszprunar & Wanninger 2012;… ). These dramatic variations in overall body plan morphology make molluscs an ideal group for comparative studies into how evolution has brought about phenotypic diversity
Do snails have blood in their bodies?
There’s one thing that all snails, spiders, and octopuses have in common: they all have blue blood. We are not speaking in the sense of monarchy; rather, these beings are made up of actually regal blood. If this is the case, then why is our blood red and theirs blue? The transportation of oxygen to different parts of the body is one of the functions of blood.
Is the snail a type of meat or fish?
The flesh of any and all animals can be referred to as “meat,” which is a noun. Meat can come from a variety of sources, including seafood, escargots, which are a type of snail, and pretty much anything else that is somewhat dense or solid and originates from a living creature. Meat is the simple solution to this question.
Is a snail a decomposer?
Shelled snails and slugs can both be classified as decomposers in a generic sense; nevertheless, their contributions to the decomposition process are negligible in comparison to those of other creatures. There is a potential for harmful interactions between land snails and other creatures.
many kinds of mollusks are there in total?
The Gastropoda class includes animals such as snails, slugs, limpets, whelks, conchs, and periwinkles, among others. Clams, oysters, mussels, scallops, cockles, and shipworms are all members of the class Bivalvia. There are around 400 different species of marine molluscs that belong to the class Scaphopoda. These molluscs are known as tooth or tusk shells.
Does Mollusca include Hare as a member?
B is the correct choice.
Mollusks are what sea hares are. Similar to snails, they are members of the Phylum Mollusca and the Class Gastropoda.
Why do we refer to them as arthropods?
Etymology. The word arthropod comes from the Greek ἄρθρον árthron, “joint”, and πούς pous (gen. podos (ποδός)), i.e. “foot” or “leg”, which together mean “jointed leg”.
Whence comes the word “arthropod,” and where did it come from?
1862, from Modern Latin Arthropoda, literally “those with jointed feet,” arthropods are the biological categorization of the phylum of segmented, legged invertebrates. The word “arthropod” has been in use since 1862.
What does the word arthropod mean in English?
: any of a phylum (Arthropoda) of invertebrate animals (such as insects, arachnids, and crustaceans) that have a segmented body and jointed appendages, a usually chitinous exoskeleton molted at intervals, and a dorsal anterior brain connected to a ventral chain of ganglia.