In which of the three major mollusk groups is each of thefollowing characteristics found?a. two hinged shellsb. a radulac. tentaclesd. some sessile memberse. the best-developed brainsf. numerous eyes

Q: Which specific class(es) of mollusks would you eat, if you didn't have a choice?

A: Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda. The members are…

Q: Which of the following animal groups adopted a sedentary mode of life as adults? O P. Nematoda O P.…

A: Phylum is a category or rank in the taxonomy, and it is a level of classification above class and…

Q: Which of these does not pertain to a protostome?a. spiral cleavageb. blastopore is associated with…

A: In the animal kingdom, after the fusion of male and female gamete, a diploid zygote is formed. This…

Q: Unlike other coelomate animal phyla, mollusks lacka. segmentation.b. cephalization.c. three primary…

A: Coelomate animals are those that contain a body cavity enclosing coelom with a complete lining…

Q: Which of these is not a feature of amphibians?a. dry skin that resists desiccationb. metamorphosis…

A: Amphibians are little vertebrates that require water, or moist surroundings, to survive.

Q: If a snail had a damaged radula, then that snail; would have no shell Not be able to undergo torsion…

A: Snails are one of the earliest known types of animals in the world. There is evidence that they…

Q: Which of the following applies to a squid? a. Cephalization c. Complete digestive tract b. True…

A: The differentiation of the anterior end into the head is known as cephalization. It is associated…

Q: Please choose all that apply for Phylum Arthropoda. segmentation coelom hemocoel O endoskeleton O…

A: Introduction:- Animals without a notochord – the rod-like elastic structure that supports the body –…

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: Function of the mouth in cnidarians includes O A. food ingestion B. solid waste egestion O C. water…

A: Cnidarians are the aquatic invertebrates that exhibit two phases of life: The free-floating stage…

Q: The sister taxon of the Chordata is the _____. a. Mollusca b. Arthropoda c. Ambulacraria d. Rotifera

A: All living organisms are classified based on their internal and external features. The science of…

Q: What internal structure does this animal use to bring in oxygen and release carbon dioxide? O A.…

A: Dolphins are mammals. They have three ear bones, and they have hair at some point during their life…

Q: Which characteristic(s) account(s) for the success ofarthropods?a. jointed exoskeletonb.…

A: Answer is e.)  all of these are correct.

Q: a) List down subclasses of Gastropoda b) Snails are distinguished by an anatomical process known as…

A:

Q: Flatworms (platyhelminthes) possess a a. metanephridial system  b. protonephridial system c.…

A: Platyhelminthes are flatworms having many classes of triploblastic and are acoelomate flatworms that…

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: Which is/are true of the mollusc radula is a synapomorphy of Mollusca is situated in the foregut a…

A: The phylum mollusca is the second largest phylum of animals after arthropoda. It includes more than…

Q: The presence of a bony skeleton, an operculum, and a swim bladder areall defining characteristics…

A: The Myxini have a partial cranium (skull) and skeleton is composed of cartilage. The Lampreys lack…

Q: Torsion is a unique characteristic of the a. bivalves. b. gastropods. c. chitons. d.…

A: Every group of organisms has some special characteristics that make them unique from others.…

Q: What organisms can survive without a mouth, digestive system, oranus?a. cnidarians  b. rotifers  c.…

A: Most of the animals have complete digestive system. The food is taken by mouth and waste is excreted…

Q: Inarticulate brachiopods

A: Answer: Inarticulate brachiopods = These are the brachiopods which have untoothed hinges , but a…

Q: Why is the presence of a coelom advantageous? O it allows room for the development and movement of…

A: The coelom is lined by a muscular tissue called the peritoneum that encloses the internal organs.…

Q: Which invertebrate phylum includes the most species?a. mollusks c. arthropodsb. roundworms d.…

A:

Q: Which phylum of animals has a water vascular system connected to tube feet? O Chordata Echinodermata…

A: Kingdom Animalia contains all animals. It is the largest kingdom of Animalia as compared to other…

Q: Basis of Phylum Phylum Phylum Phylum Arthropoda Comparison Nematoda Annelida Mollusca Number of germ…

A: Earlier formed organism are simple like porifera, cnidiaria etc. While the body organization gets…

Q: Which is not a feature of the Arthropoda? O most diverse lineage on the planet O compound eyes but…

A: An arthropod is an invertebrate animal having an exoskeleton, a segmented body, and paired jointed…

Q: Among arthropoda, antennae are characteristic of O Insecta O Myriapoda O Crustacea O All of the…

A:

Q: Why are the Cnidaria neither protostomes nor deuterostomes? O they don't have body cavities O they…

A: All Cnidaria are : aquatic mostly marine. They all have tentacles with stinging cells called…

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: ambulacral grooves are present in which animals below? a. a unified skeleton b. no madreporite…

A: Ambulacral grooves are usually found in the starfish which is filled with fluids and contains…

Q: Explain the structure and functions of the mollusk mantle.

A: Mollusks are a phylum with a wide range of species. Mollusks can be as little as a grain of sand. A…

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: Describe the differences between the two pairs of wings of hexapods (appearance & function).

A: Comparative anatomy is the study of the "similarities and dissimilarities" between various objects.…

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: Which of the following occurs only in chordates A. notochord B. pharyngeal gills O C. dorsal hollow…

A: Chordata is the phylum of the animal kingdom that includes a large number of animal species,…

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: Which of the following animal groups adopted a sedentary mode of life as adults? O P. Nematoda O P.…

A: sedentary means living in the same place for the whole of one's life; it does not indicate migratory…

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: Which earthworms have a clitellum?a). adultsb). juvenilesc). juvenile femalesd). malese). adult…

A: Annelids are included under the sub kingdom eumetazoa and is characterized by bilateral symmetry and…

Q: Which is the only one example ofMollusca Phylum?A. Locust     B. ButterflyC. Scorpion    D. Octopus

A: Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as…

Q: Brachiopods periodically cease to feed because predators may pass overhead , causing the shell to…

A: Brachiopods are marine organisms with hardshell covering both upper and lower body parts.…

Q: Nereis, Pheretima (Earthworm) andHirudinaria (blood sucking leech) areexamples of which Phylum:A.…

A: Nereis is a genus of polychaete worms in the family Nereididae. It comprises many species, most of…

Q: Give two (2) economic and three (3) ecological importance of the mollusks. Then enumerate 5…

A: Answers Two economic importance are as follows :  In most of the coastal regions molluscs oysters,…

Q: A What is mean ond contrust to cephelopods

A: Circulatory system is also known as cardiovascular system or vascular system.It is an organ system…

Q: Zoology arthropoda. Name the structure and it’s function.

A: Arthropoda is the largest phylum of the invertebrates, they contains insects molluscs etc.  Body of…

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…

Q: ain the difference in body plans between cephalopods and gastropod

A:

Q: Compare and contrast the anatomical organizationof sponges and cnidarians. How do these…

A: both of these organisms shows simple organization ,sponges have multiple cell types while cnidarians…

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.