The shells of molluscs have 3 layers. Which is not one (nacreous/mantle/periostracum)?

Q: Define coelom

A: The body's cavities or spaces include the internal organs, The two main cavities are the ventral and…

Q: Torsion is a unique feature of molluscs. O A. Yes O B. No

A: Mollusca (members are known as molluscs or mollusks) is the second-largest phylum of invertebrate…

Q: How is the excretory system of molluscs characterized?

A: The mollusks are diverse morphologically and live in many types of environments. It includes snails,…

Q: How permeable are egg shells?

A: Cells are the smallest functional and structural unit of all organisms. All cells have a cell…

Q: . Identify three characteristics found in all molluscs.

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

Q: mollusca physiology

A: Mollusca's are the second largest animal phylum.These are sluggish invertebrates, with triploblastic…

Q: Vhich of the following DA All Mollusks have radulae. B Some mollusks, but not all, have a variation…

A: Phylum can be defined as the level of classification or belongs to a taxonomic group below the…

Q: Most molluscs have an external shell of some have an internal shell such as and and others don't…

A: Molluscs is a phylum that belongs to Non Chordates. They comprise the second largest phyla.Mollusc…

Q: Using Figure 31.2, identify the general characteristics of a mollusc.

A: Mollusks are bilaterally symmetrical, segmented, soft-bodied, coelomate animals. The molluscs have a…

Q: . What features do all mollusks share?

A: Mollusk also spelled mollusc, is the second-largest phylum of soft-bodied invertebrate animals, with…

Q: First with body segmentation 1. Echinodermata2. Platyhelminthes3. Annelida4. Porifera5.…

A: The kingdom Animalia is classified into vertebrates and invertebrates. Some of the invertebrate…

Q: Evolution does not always lead to complexity. Is this true in molluscs? Why or why not?

A: No, this statement is not true for molluscs because molluscs have well developed and complex organ…

Q: Explain how each molluscan feature is modified, compared to gastropod and bivalve body plans. 1)…

A: Cephalopods, Gastropods and Bivalvia are all classes of Molluscs. They differ in their habitats. For…

Q: The basic body plan of a mollusk is to have a head, foot, and visceral mass. In the case of the…

A: Cephalopods are members of the mollusk class. Cuttlefish, octopus, squid, or nautilus are few…

Q: Answer the following questions briefly but concise: 1. Justify the statement " Members of the Class…

A: Note: Upload 2nd question separately, here i have given answer of 1st question. Answer: 1.…

Q: In the different lineages of molluscs, it is easy to understand the variations from the basic…

A: Molluscs are very diverse animals which include snails, octopuses, squids, oysters, clams, etc. The…

Q: Unifying features include shell, mantle, radula, foot, visceral mass Which classes show a loss of…

A: Mollusca is the  second largest phylum of the invertebrate animals.  Answer;1    The mollusk (or…

Q: Which part of a gastropod shell houses the viscera of the organism? protoconch body whorl columella…

A: Gastropods are a highly diverse Class of molluscs having an asymmetrical arrangement called torsion.…

Q: From where is shell of molluscs is derived?

A: Mollusks are the marine invertebrates that belong to the Phylum Mollusca. The members of this group…

Q: Molluscs can seem extremely different yet they share several core features. Sketch, label, and…

A: * many types of mollusca are present in the groups  Bivalvia  Cepholoda  Gastropods . Common…

Q: What are the importance of molluscs to other organisms, environment, medicine, etc.?

A: Introduction Mollusca is the second-largest phylum of invertebrate organisms after Arthropoda, with…

Q: Mollusks secrete a calcified shell from their mantle. True False

A: These are Various characteristics feactures of Mullusca 1. Their symmetry is Bilateral. 2. They are…

Q: Describe the evolutionary history of snails (Molluscs). In which eon, era and period did the first…

A: The Arthropoda, whose members are referred to as molluscs or mollusks, make up the biggest phylum of…

Q: ll mollusks have a muscular foot, mantle and visceral mass. Look for these structures and compare…

A: Mollusks are included in the phylum Mollusca. They are soft-bodied invertebrates. They are enclosed…

Q: How are pearls formed? Why are molluscs the only organisms to have this ability? Explain your…

A: Pearls are formed by molluscs. It can be either from salt or fresh water. But the Pearl of salt…

Q: The opening of a gastropod shell is called the (spire/aperture/whorl/spine)

A: The Gastropods belong to the class Gastropoda which is under the phylum mollusca. The gastropods are…

Q: What are the three major body parts of the phylum Mollusca? Select one or more: □a Foot Ob. Radula…

A: Introduction Mollusca:- It is the second-largest phylum of invertebrate animals after the…

Q: Provide an example of each of the major groups of molluscs.

A: Answer: Introduction: The body structure of molluscs are a mantle and a cavity utilized for…

Q: What are the three major body parts of the phylum Mollusca? Select one or more: □a Foot Ob. Radula…

A: Introduction  The majority of marine phylum, or around 23% of all described marine species, are…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.