Are mollusc metameric beings? Exclusively analyzing this feature could it be said that molluscs are evolutionarily proximal to nematodes or to annelids?

Q: Match locomotion types with the appropriate taxa Gastropoda [ Choose ] peristaltic burrowing jet…

A: Locomotion is usually the word that defines the ability or allows us to move from one location to…

Q: What are shared characteristics of all Molluscs? Choose All That Apply visceral mass mantle muscular…

A: Mollusc is the second largest phylum in animal kingdom. They can be terrestrial or aquatic. They…

Q: Segmentation in the earthworm is not exemplified bya. body rings.b. coelom divided by septae.c.…

A: Earthworm is a reddish brown terrestrial invertebrate that inhabits the upper layer of the moist…

Q: What molluscan features can be seen in other invertebrate phyla? Explain.

A: Animals are classified on the basis of presence of spinal cord and backbone into vertebrates (…

Q: Compare the locomotory mechanism between the gastropods and cephalopods in terms of structure.

A: Gastropods are the molluscs that includes the terrestrial, marine and the freshwater species.…

Q: The first coelomate animals are the (Nematoda/Platyhelminthes/Mollusca/Arthropoda)?

A: coelomates or eucoelomates are the organisms that possess true coelom. The true coelom is considered…

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

A: All animals are classified according to their presence of characteristics such as characters,…

Q: Why are porriferans asymetrical? Cnidarians radial? The rest bilateral? (based on evolution)

A: It is required to provide the reason for assymetrical nature of poriferans, radial symmetry of…

Q: Concerning tissue complexity how different are cnidarians from poriferans?

A: Poriferans and Cnidarians are organisms belonging to the Animal Kingdom. Phylum Porifera are also…

Q: How does a molluscan coelom develop embryologically? Why was the evolutionary development of a…

A: Molluscs area unit found it nice ranges of habitats, from the tropics to the polar seas, at…

Q: What are the checkpoints in the completion of the life cycle of nematomorphs? Would it be easier if…

A: The phylum Nematomorpha (horsehair worms) is constituted of orders: Nectonematoidea (monogeneric…

Q: Nematodes once were thought to be closely related torotifers due to the presence of a pseudocoelom…

A: Nematodes:         Nematodes can be otherwise known as roundworms, which comes under the hood of…

Q: Imagine you come across a gelatinous animal with a Medusa body plan swimming. Determine whether it…

A: Cnidaria is a Phylum of the Animal Kingdom. It has 4 classes namely:  Hydrozoa  - eg Capitata…

Q: part i How many of the following are characteristics of arthropods? 1. protostome development…

A: Characteristics of arthropods (Correct options): Option 2: Arthropods are bilaterally symmetrical.…

Q: While sampling marine plankton in a lab, a student finds a large number of fertilized eggs. The…

A: Features given in the question are :  1 .the blastopore becomes the mouth: In protostomes, the…

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: Characteristics of mollusc are O A. Mantle B. Mantle cavity O C. All of these O D. Coelom E. Radula

A: Cells are the basic unit of life. Living organisms could either be unicellular or multicellular.…

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: What developmental evidence is used to link Annelids, Arthropods, and Molluscs evolutionarily?

A: Annelids are a type of worm that includes earthworms and leeches. Arthropods are invertebrates that…

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: Nematodes and arthropods both (develop an anus from the blastopore formed during…

A: Nematode and arthropods fall under one same ancestor clade i.e. Ecdysozoa.  Nematodes are roundworms…

Q: hat features of molluscs appear in other invertebrate phyla? Explain

A: The most common properties of mollusks are covers with various vital openings used for breathing and…

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: The comments of N. A. Cobb quoted in the opening essay for this chapter make clear just how…

A: Nematodes area unit key elements of soil diversity and represent valuable bio-indicators of soil…

Q: Which is more widespread: Annelids or Nematodes? Why do you think so?

A: Introduction There is diverse range of organisms living on earth. Some are small, microscopic such…

Q: Briefly describe characteristics of the hypothetical ancestral mollusc, and tell how each class of…

A: Mollusca is the largest marine phylum of the animal kingdom that is characterized by a mantle with a…

Q: Worms are present in the Platyhelminthes, Annelid and Nematode lineages. How is the coelom used to…

A: Coelom is the principal body cavity that located between gut wall and the body wall. Type of coelom…

Q: Gonozoids continue the reproductive cycle by budding medusae. About how many maturing medusae are…

A: These are rare in number and only found around the hydrocaulus's base. The gonozooids are the…

Q: All molluscs, but the bivalves, are bilaterally symmetrical (True/False)?

A: Bilateral symmetry means that the body can be divided in two halves that is left and right if…

Q: Which other invertebrate groups are likely to be the closest relatives of molluscs? What evidence…

A: Invertebrate groups: Invertebrate groups are the group of organisms that does not have a vertebral…

Q: A chiton. Note the eight-plate shell characteristicof molluscs in the clade Polyplacophora.

A: The chiton is a mollusk that inhabits the marine environment. They belong to the class…

Q: If nematodes are the most numerous animals, the Arthropoda, including insects, are the most diverse,…

A: Arthropods is the largest phylum of Animalia , they are also called ecdysozoans with paired…

Q: Mouth Second Asymmetrical Animals Symmetrical Animals Spiny Skin Radial Symmetry Bilateral Symmetry…

A: * Assymetrical animal is porifera * Symmetrical animals are eumetazoans *radial symmetry exhibited…

Q: Brachiopods superficially resemble bivalve molluscs, such as clams. How would you explain the…

A: brachiopods are marine invertebrates that comprises the lamp shells. They are places in phylum…

Q: You take a field trip to tide pools in Puget Sound and encounter all sorts of Animals. Please use…

A: In the biological classification of organisms in a hierarchy, the phylum is placed just above the…

Q: The only members of Phylum Mollusca that have a radula are the gastropods (True/False)?

A: The radula is an anatomical structure used by molluscs for feeding. It is analogous to the tongue.…

Q: Members of the Molluscan class Polyplacophora differ from ALL other classes of Mollusks in that…

A: Molluscs are soft bodied , bilaterally symmetrical,  segmented, celomate animals, usually shelled…

Q: Annelids (include leeches, earthworms and polychaete worms/ use their coeloms as hydrostatic…

A: Annelida is a group of segmented worms. They have a long and segmented body. Annelids are…

Q: The rasping tongue that many molluscs use to feed on prey is called Oa radula. O the nematocyst. the…

A: After arthropods ,mollusc is the second phylum containing vast majority of invertebrates.

Q: What is the importance of torsion and shell coiling in gastropods along with their evolution?…

A: Torsion is the process in which the mantle cavity twists 180 degree with respect to the head and…

Q: What makes molluscs different from other invertebrate phyla?

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

Q: Can have both a medusa stage and a polyp stage (both in water) 1. Echinodermata2. Platyhelminthes3.…

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

Q: Why are Cnidarians diploblast and other animals tripoblast based on evolution?

A: In the early developmental stages, the embryo of the vertebrates organizes itself into a…

Q: You find a bivalve mollusc with very short siphons.  You can thus predict that inhabits a shallow…

A:

Q: Which other invertebrate groups are likely to be the closest relatives of molluscs? What evidence…

A: Mollusca is the largest marine phylum of the animal kingdom that is characterized by a mantle with a…

Q: Class Cephalopoda is unique among the classes in Phylum Mollusca in that (they undergo direct…

A: Cephalopods belong to the phylum Mollusca. They are exclusively marine in nature and are…

Q: Compared to platyhelminthes which physiological problem have the cylindrical body of nematodes…

A: Platyhelminthes are flat worms that are unsegmented, acoelomates and have bilateral symmetry. They…

Q: Vhich of the following terms apply to the body cavity of Molluscs (except Cephalopods)? Choose al…

A: It is second largest phylum and consists of diverse group of animals, around 50,000 living species.…

Q: f the lophophore is absent in brachiopods, would you consider them to be members of Mollusca? Why or…

A: Definition: - A lophophore creates a continuous, laminar water flow, induced by the lateral cilia on…

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.