Although nematode worms and arthropods do not appear related, they, in fact, are. One similarity between these two groups of organisms is/are; They both have a hydrostatic skeleton They both molt They both have a segmented body plan They both have a ventral nerve cord and nerve ganglia

Q: Venom glands may be adaptations of peculiar cell types to inject venom (Cnidarians)....what does…

A: In Cnidarians venom glands are small capsules filled with coiled, barbed threads that often contain…

Q: Which of the following animals are Deuterostomes and which are Protostomes: - Prawn - Carp - Fly -…

A: Deuterostomia literally means “second mouth”. They are animals whose anus forms before their mouth…

Q: Which of the following is the correct classification for the following invertebrate animal: These…

A: Animal are those organism who don't have cell wall in their cells. They can move from one place to…

Q: A terrestrial animal species is discovered with the following larval characteristics: exoskeleton,…

A: The phylum is the division of Kindom in the process of classification of organisms in which the…

Q: Which of the following taxa contain some freshwater species? O Xenacoelomorpha and Platyhelminthes O…

A: There are some taxa that represent such organisms that can't resist the saline water but they can…

Q: All arthropods 1. Undergo complete metamorphosis 2. Have jointed appendages 3. Molt 4. Have…

A: Arthropod, any member of the phylum Arthropoda are the largest phylum of animal kingdom. They…

Q: This specimen is not a nematode because: O a. It has 2 layers of muscle. O b. It has a gut. C. It…

A: Nematodes are also known as roundworm. They belong to the phylum Nematoda.

Q: Which of the following lack setae: earthworms polychaetes leeches nemerteans

A: Annelid setae are stiff bristles present on the body. For example : eathworms , leeches and…

Q: We were shown this specimen in an invertebrate zoology class. What is it? The professor told us…

A: It sure does comes under mollusks but I believe that this is not a Bivalve but a Chaetoderm, which…

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: Choose all the phyla we looked at in this lab that have a hydrostatic skeleton. nematodes molluscs…

A: Nematodes, mollusca and annelids all the three have hydrostatic skeleton. The hydrostatic skeleton…

Q: Fill in the table with the distiguishing characteristics of the different phyla of invertebrates…

A: phyla organ system unique features Porifera They do not posses any organ system they have pores…

Q: Closest to Chordata 1. Echinodermata 2. Platyhelminthes 3. Annelida 4. Porifera 5. Chordata 6.…

A: The animals of the phylum Chordata possess a notochord, a dorsal nerve cord, an endostyle,…

Q: Although ctenophorans appear somewhat similar to cnidarian medusae, the two phyla are structurally…

A: Animal kingdom deal with 10 major phyla.

Q: Which of the following combinations correctly matches a phylum to its description? O…

A: A phylum is a categorization or taxonomic rank that falls between kingdom and class. A phylum's…

Q: Make a table showing the similarities and differences of the 4 phyla in terms of the different organ…

A: Nematomorpha are a phylum of parasitoid animals superficially similar to nematode worms in…

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: Which of the following is true about polychate worms (Feed using nematocysts/ part of the ecdysozoa/…

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

Q: Which of the following is the correct classification for the following invertebrate animal: This…

A: R.H. Whitaker’s classification system divided organisms into five major groups, called Kingdoms.…

Q: Which of the following characterizes hominoids? [Select] [ Select ] They all have large, complex…

A: Hominoids are also called apes, refer to the family of primates that includes 22 species including…

Q: The defining feature of the cnidarians is that they all have nematocytes (cnidocytes). These cells;

A: Cnidaria is a phylum of aquatic animals with about 11000 species. Cnidarians can be both marines as…

Q: Aquatic molluscs have a blood vascular system & metanephridia so they must also possess a…

A: The Mollusca Phylum has over 160,000 species, 90,000 of which are still alive. Some shells were…

Q: Which of the following combinations of phylum and description is incorrect?…

A: A phylum is a degree of classification or taxonomic rank in biology that is below kingdom and above…

Q: true/false 1. Proboscis of butterflies is a modified organ of labial palpi. 2. Diptera has one…

A: The insect belongs to the class Insecta or Hexapoda, any member of the largest class of the phylum…

Q: A terrestrial animal species is discovered with the following larval characteristics; exoskeleton,…

A: The arthropods are the animals that consist of an exoskeleton, system of tubes for gas exchange and…

Q: Which of the following things is/are true about this organism? invertebrate chordate fish Agnathan…

A: The Arctic lamprey is a little fish that can grow to be over 15 inches long but is usually much…

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: which of the following features does not distinguish humans as a member of phylum chordata as…

A: Chordata are the group of animal kingdom which includes three groups that are urochordata,…

Q: Compare the whole specimens and cross-sections of Ascaris and Dugesia. How would you differentiate…

A: Ascaris is an example of Nematoda and Dugesia is an example of Platyhelminths. Both are phyla of…

Q: Imagine you come across a small worm. How can you determine whether it is a class Hirudinida or a…

A: Introduction :- Organisms are classified amongst various classes, orders , family according to their…

Q: Which is/are true of the mollusc radula a toothed structure is a synapomorphy of Mollusca is…

A: Introduction After the Arthropoda, Mollusca is the second-largest phylum of invertebrate animals.…

Q: invertebrate chordate. Which of the following would ensure that you are indeed looking at a…

A: A vertebrate is an animal with a spinal cord surrounded by cartilage or bone. The word comes from…

Q: The planula stage in Cnidarians is similar to what life stage in two other non-animal organisms?…

A: It is critical to learn and know the anatomy and physiology of the body. Many changes in the animal…

Q: What unifies the hexapoda? Be able to recognize a few of these classes by sight, and be able to…

A: Hexapods are distinguished by the decrease to six in walking annexes, with a merger of three bodies…

Q: Nematodes differ from annelids in that they are segmented. they are triploblastic. they have a…

A: Nematodes are found in a variety of environments, such as soil, marine, and freshwater, and various…

Q: What best describes frogs in terms of development

A: Frogs belong to the phylum Chordata and class amphibians. All amphibians are bilaterally symmetrical…

Q: You spent time in a body of freshwater in the tropics and sometime later become fatigued and develop…

A: It is considered as second most devastating infection after malaria by WHO.

Q: A synapomorphy and symplesiomorphy for the vertebrates (respectively) would be; True tissues,…

A: Animals with spinal cord surrounded by bone or cartilage are known as vertebrates. Whereas animals…

Q: Which of the following is NOT a description of the Arthropods? Exhibits true segmentation in the…

A: Introduction Arthropods:- These are invertebrate animals having an exoskeleton, a segmented body,…

Q: Nephridia are found in     jawless fishes.     lancelets.     annelids.     cephalopods.…

A: Nephridia is an excretory organ which is found in many of the invertebrates, it is just a tubular…

Q: Parasitic flatworms have very different bodies than free living flatworms. Which of the following…

A: Platyhelminthes Includes flat worms(dorsiventrally flattened), most primitive bilateral animals,…

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: A radula in a gastropod is     a female reproductive structure     A sharp, tooth like structure…

A: Gastropods are organisms having spirally coiled shell into which the body can be withdrawn, but the…

Q: Which of the following are characteristics shared by the phyla Platyhelminthes and the Nematoda?…

A: According to Bartleby guidelines, we are required to attempt first question in case of multiple…

Q: Leeches are members of the phylum _ in the clade of bilaterally symmetric animals called _…

A: Leeches are ectoparasites and do not possess any parapodia or setae. They have a peculiar connective…

Q: do any nematodes have similar adaptations due to their needs being met by their hosts

A: * Nematodes are the invertebrates called as roundworms which can be found in habit of  marine and…

Q: You are trying to identify a living organism which you are observing closely.  Which one of the…

A: Acoelomates lack a fluid-filled cavity between the body wall and digestive tract but coelomates have…

Q: Which of the following is the correct classification for the following invertebrate animal: These…

A: An example of an appendage is an arm or leg. There are few lower invertebrates which do not have a…

Q: Which phylum of animals shows radial symmetry and has tentacles with stinging cells? Nematoda…

A: Based on the symmetry of the body, animals can be classified into three types, namely radial…

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.