Which of the following is true about polychate worms (Feed using nematocysts/ part of the ecdysozoa/ typically live in the marine environment/ unsegmented with a radially symmetrical body)?

Q: Discuss the body plans exhibited by the crustaceans that are also shared by all other arthropods.…

A: The word arthropod is a combination of two Greek words - arthro meaning jointed and pod meaning…

Q: Which of the following organisms would expect to have the largest surface-area-to-volume ratio?…

A: All the three (mollusks, platyhelminthes, nematodes ) belong to the same kingdom that is animalia.…

Q: Which of the following is NOT present in all Annelids? O complete alimentary canal O coelom O…

A: The annelids, commonly known as ringed worms or segmented worms, are a vast phylum that includes…

Q: Which of the following is responsible for the process of filter feeding in a sponge? a. flame cells…

A: Filter feeding is the aquatic feeding method in that animals takes various small pieces of prey at a…

Q: Which is more widespread, nematodes or annelids

A: Nematodes are most numerous of any phylum . About 15000 species of nematodes are present .  Due to…

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: Define the following with respect to gastropods: operculum, torsion, fouling, bilateral asymmetry,…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Match the following:(a) Operculum           (i) Ctenophora(b) Parapodia            (ii) Mollusca(c)…

A: Animals are divided into main categories known as chordate and non-chordate. Non chordates do not…

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: How similar are the morphological and physiological traits of the members of pancrustacea? Why are…

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

Q: Which of the following does NOT occur?

A: Animals which possess bilateral symmetry develop three germ layers I.e. are ectoderm, endoderm and…

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: Class Gastropoda and Class Bivalvia independently evolved modifications to their body plan that…

A: Both class belong to the phylum mollusca of kingdom animalia.

Q: Choose which is FALSE among the following statements about the Phylum Annelida. A. Annelids have…

A: A. False.  B. True C. True D. False E.True.

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

A: Animal kingdom deal with 10 major phyla.

Q: 1) Species belonging to the following groups typically have a trochophore larva at the beginning of…

A: Trochophore, also trochosphere, is a thin, translucent, free-swimming larva found in marine annelids…

Q: ich one of the following arthropods has no antennae?     tick     moth     crab…

A: Arthropods are  defined  on the basis of their jointed limbs and  the cuticle made of chitin,…

Q: What is the primary characteristic of the Ecdysozoa (Nematoda + Arthopoda)?

A: Answer: Ecdysozoa : These are the superphylum which includes arthopoda and nematoda , which have…

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: Unlike the turbellarians earthworms have a complete digestive system. This means that;

A: Animals (likewise called Metazoan) are multicellular eukaryotic creatures that structure the natural…

Q: With respect to nematode reproduction and reproductive structures, which of the following statements…

A: Nematodes are roundworms belonging to the phylum Nematoda and part of the Kingdom Animalia. they are…

Q: All of the following are characteristics of annelids except     a coelom.     a complete digestive…

A: Pseudocoelom is not a phylum Annelida trait. Annelids are protostomes that have a series of rings or…

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

A: Introduction  Any Molecule That Improves The Oxygen Carrying Capacity Of Blood Is Referred To As A…

Q: Identify the phylum/class of invertebrate that matches this description: These animals lack a…

A: Helminths are worm-like parasites that live by feeding on the living host. They gain protection and…

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: 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: 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: What is the following specimen? Our invertebrate zoology professor told us there is a bryozoan on…

A: It is a Bryozoa which is commonly called as Moss animal, they are also called as Ectoprocta and…

Q: Match the following characteristics to the different Cnidarian classes... Match each item to a…

A: Modern cnidarians are normally divided into four main classes. Sessile Anthozoa (such as sea…

Q: Which of the following statements regarding dipnoi (lungfish) is true?     amniotes share a more…

A: Lungfish are freshwater  rhipidistian vertebrates belonging to the order Dipnoi. Lungfish are best…

Q: In which of the following aspects are nematodes more complex than flatworms?    a. External…

A: Nematodes are also known as round worms. Flatworms belong to phylum platyhelminthes.

Q: Please complete the following (abbreviated) cladogram of Metazoa, labeling tips, nodes and…

A: Cladogram -- In olden days biologists grouped the organisms based solely on their physical…

Q: Identify and describe the features of Rotifera and Acanthocephala that make them distinct from one…

A: Rotifera 1.  Body consists of four different regions - head, neck, trunk, foot. 2. Head has a…

Q: What is the morphological characteristic that evolutionarily approximates the beings of the phylum…

A: Annelids are defined as triploblastic, bilaterally symmetrical, metamerically segmented, acoelomate…

Q: The body plan of an annelid displays. meaning that the body is divided into a series of repeated…

A: The phylum Annelida is an invertebrate phylum. Annelids are triploblastic coelomates with bilateral…

Q: Which of the following statements regarding the anthozoans is false? They have symbiotic algae…

A: BASIC INFORMATION ANIMAL KINGDOM  It is among one of the five kingdom classified by R.H. Whittaker.…

Q: What part of the earthworm's digestive system would you see in a cross-section anterior to the…

A: An earthworm is a tube-shaped, segmented worm found in the phylum Annelida. Earthworms are commonly…

Q: Although nematode worms and arthropods do not appear related, they, in fact, are. One similarity…

A: Animals (likewise called Metazoan) are multicellular eukaryotic creatures that structure the natural…

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: Three major phylogenetic groups of Bilateria are currently recognized: Ecdysozoa, Lophotrochozoa,…

A: Since the drastic reorganisation of the phylogeny of the animal kingdom into three major clades of…

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: For each of the following classes of Arthropods, identify a feature unique to the class and at least…

A: Arthropods have invertebrate animal having an exoskeleton, a segmented body, and paired jointed…

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: Match feeding mode with appropriate taxa Cephalopoda v [ Choose ] suspension and deposit feeders…

A: Animals that feed on the food in sediments are called deposit feeders while those that consume…

Q: Match the following taxa with the appropriate characters: Nematoda V [ Choose ] repugnatorial glands…

A: Repugnatorial glands are those that secrete scent to repel enemies. Bilaterally symmetrical is a…

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.