A unique feature of the gastropods is that they undergo the process of embryonic torsion. This process results in; The spiral shaped shell that gastropods have The gastropod develops retractable antennae the anus being positioned near the head The gastropod foot becomes elongated and pliable

Q: What arthropod characteristics are likely to have contributed to their success on land? Choose all…

A: The arthropods are eukaryotic animals belonging to the kingdom Animalia and phylum Arthropoda.…

Q: All acoelomate bilateral animals have protonephridia. Group of answer choices True False

A: ▪︎Acoelomates are the organisms which do not possess a body cavity.They are triploblastic, their…

Q: Which of the following is a synapomorphy of the Anthozoa? Exoskeletons of calcium carbonate O Corals…

A: Cnidaria is a diverse collection of creatures that live primarily in the sea. Because they rely on…

Q: How is the development of a hookworm larva different from the development of a pinworm larva

A: Larva is a stage during the development of animals. It occurs after the birth and before the reach…

Q: Insect body dorsoventrally flattened, head with chewing mouthparts directed downwards and fore wings…

A: c.Blattodea.

Q: Textularia Aperture: Chambers: Periphery: Proloculus: Septum (last):

A: Textularia  It includes many vagile (having ability to move from one place to another) inbenthic…

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: Why do we have to use special techniques for the recovery of pinworm eggs? Explain

A: Introduction : Pinworms are typically located in the anus or the proximity of the anus, where they…

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: Monotremes all have what unifying feature? Arthropod-like pincers Placenta Ventral pouch Ability to…

A: Mammals belonging to the order Monotremata are known as monotremes. The Monotremata are the oldest…

Q: please label the internal of snail in the photos

A: Kingdom          :       Animalia  Phylum             :       Mollusca  Class                 :…

Q: The Insecta includes Chelicerata | Crustacea Collembola Curculionidae

A: Insects are hexapod invertebrates and the members of the is largest of phylum Arthropoda. Insects…

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: echanisms of a Planaria, Tapeworm and Fasciola

A: Platyhelminthes is a phylum of squishy, thin worms with a leaf-like or ribbon-like shape. They're…

Q: Hookworm undergoes lung migration phase in its life cycle O False true

A: TRUE

Q: Identify the scientific name of the following gastropods

A: INTRODUCTION Gastropod, any of the more than 66,000 animal species that make up the Gastropoda…

Q: 40. A marine biologist asked you to look out for Echinodermata in an expedition. Which of these…

A: The first organism that is listed is a crab. It shows presence of jointed appendages and shows an…

Q: Nematodes are acoelomate animals (True/False)

A: Acoelomate animals are those animals which have no coelom or body wall present in them. Thus a…

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: Elytra Pterostigma Raptorial Fossorial Exopterygote Endopterygote Vas deferens Spermatheca…

A: Invertebrates belonging to the class Insecta are pancrustacean hexapods, or insects. They make up…

Q: Create a concept map or illustrated drawing for each phylum Ccnidaria, Rotifera, and mollusca) that…

A: With over 11,000 species of aquatic organisms found in both freshwater and marine habitats,…

Q: 26.Plin spital gastropods calling in which the whorls are arranged spirally in more than one plane…

A: Need to find whether the given statement is true or not. Given: Plin spital gastropod whorls are…

Q: Grylloblattodea is Paleoptera undergoes a pupal stage lives in high altitude or ice caves is the…

A: Introduction :- Grylloblattodea is an insect belongs to an order polyneoptera which is closely…

Q: Describe the four stages of meiosis I

A: Meiosis is a type of cell division. The cell is divided and produces some offspring cells. So there…

Q: Which of the following is NOT true about nematocysts? O They are structures housed in special cells…

A: Classification is the process of systematically arranging the entries in different levels on the…

Q: How is the body of gastropods divided?

A: Molluscs are both terrestrial and aquatic organisms that have an organ-system level of organization.…

Q: Nematocysts in cnidarians are O reproductive cells O excretory organs sets of muscle cells O…

A: Cnidarians are a group of invertebrate animals that include jellyfish, sea anemones, corals, and…

Q: Annelida (Segmented round worms) How do these worms differ from the other two? What are the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. If you need help with other sub…

Q: Which is an outcome associated with torsion but not with coiling? (mark all that apply) potential…

A: We will answer the first question since the exact one was not specified. Please submit a new…

Q: The male copulatory organ of turbellarians is called a

A: Turbellarians belong to phylum Platyhelminthes.Temnocephala lamothei ,Dugesia aenigma,Dugesia…

Q: Which of these parts is an embryonic midline structure common to all members of the phylum Chordata…

A: Notochord is an embryonic midline structure common to all members of the phylum chordata and plays…

Q: 34.Though most gastropods are grazing forms , some are Sessile benthos . Select one : True False

A: Gastropods are under the phylum mollusca. The term gastropod means gastro=digestive system and…

Q: In flatworms gas exchange, nutrient transport, etc. involves diffusion alone a blood vascular system…

A: INTRODUCTION Flatworms These are acoelomic unsegmented worm having bilateral symmetry, and three…

Q: Cnidarians development will continue to include the stage. --- Gastrula Zygote Blastula Gamete

A: Cnidarians are also commonly known as coelenterates. They are a phylum under Kingdom Animalia that…

Q: Nodosaria Aperture: Chambers: Periphery: Proloculus: Septum (last): Shell: Sutures: Umbo: Whorls:…

A: Nodosria are the single celled animals that are protected by a hard shell. They are microscopic in…

Q: Earthworms are segmented animals. All of the following are present on/in most segments of an…

A: Origin The origin of earthworms was said to be on earth around 200 million ago. Their ancestors were…

Q: The dauer stage of worm development occurs:   1) when there is ample food   2) when there is…

A: Worms are the organisms of the animal kingdom that lack eyes and limbs. they have a cylindrical…

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: 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: What is the name of the larva of coral and sea anemones ? What is the biological importance of that…

A: The larva is a developmental stage that is different from the adult stage. The organism has…

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.