What structure differentiates Ectoprocts and Brachiopods from other Lophotrochozoa?

Q: Review the extent of segmentation in Polychaetes, Leeches, Siboglinids, Echicrans, and Sipunculans.

A: Hi! Thank you for the questions. As you have posted multiple questions, I will be answering the…

Q: For phylum Porifera, Class Calcarea  . Characteristics. List whether the organism is: a.…

A: The members of phylum Porifera, Class Calcarea were: A) Diploblastic B) Neither protostome nor…

Q: 1-true tissues or not- who does not have? 2- radiate/bilateria- who for sure is in radiate? 3-…

A: Kingdom Animalia / metazoa The kingdom Animalia is classified into Two Sub Kingdoms , they are -…

Q: Compare and contrast the lifestyles of gymnamoebas andentamoebas.

A: Gymnamoebas and entamoebas are the members of amoebozoa group. The members of amoebozoa form a large…

Q: List examples of each of the 15 phyla

A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: Tardigrada Onychophora Chelicerata Myriapoda Pancrustaceal Refer to the Morphological Phylogeny…

A: Onychophora is a group of soft bodies animals commonly known as velvet worms. Over 200 species of…

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: For the phylum Gastrotricha please provide: - -- General biology. Approximately how large is the…

A: General Biology: The phylum Gastrotricha is a small and cosmopolitan group of microscopic animals.…

Q: What are the differences in the reproductive systems of the three classes of Platyhelminthes?…

A: INTRODUCTION Platyhelminthes are the flatworms. Fundamental phylum Platyhelminthes characteristics…

Q: Describe characteristics of phylum Platyhelminthes and its subgroups by discussing similarities and…

A: The phylum Platyhelminthes includes a variety of worm-like organisms that share some common…

Q: Which of these organisms is NOT in the clade Lophotrochozoa? Cephalopoda Gastropoda Bivalvia…

A: Lophotrochozoa is a clade of protostome animals with an early form of a mouth. It includes the…

Q: Describe the unique features of platyhelminthes, rotifers,bryozoans, and brachiopods.

A: Answer- Animals are characterized in the animal kingdom according to the similar characters.

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: If you were asked to choose one of the following invertebrate as a pet (protozoa, sponges, and…

A: Protozoans *protozoans are single celled eukaryotes that lives free living or parasitic means that…

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: Consider clades Bilateria, Lophotrochozoa, Metazoa, Chordata,Ecdysozoa, Eumetazoa, and…

A: A clade can be defined as a grouping that comprises of a common ancestor and its each and every or…

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: Placozoans are structurally simple. They have no mouth, gut, or nervous system and only a few…

A: Placozoans are free living marine multicellular organism with simplest structure.

Q: Annelid anatomy can be described as “a tube withina tube.” Explain.

A: Annelids are a phylum of worms with invertebrates. They are the worms which are segmented, with over…

Q: Distinguish the following from each other: statocyst and rhopalium; scyphomedusae and hydromedusae;…

A: The Cnidarians belongs to the phylum of simple animals. It includes jellyfish, hydras, corals, and…

Q: | What is translational repression? Explain why do cells use translational regulation to respond to…

A: Translational repression consists of  cellular and enzymatic reactions that inhibit the  process by…

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: Create a cladogram summarizing the phylogenetic relationships among the different phyla. Phyla:…

A: Thank you for the question Answer : In evolutionary biology, the organisms belonging to different…

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: ney 2. They possess both male and female reproductive organs. 3. The outer body layer of an organism…

A: Phylum porifera consists of organisms that are cellular grade  and have pores in their body.There…

Q: what words match the definitions Atria, Cuticle, Pseudocoelom, Exoskeleton, Ecdysis, Malpighian…

A: Pseudocoelom A body cavity that is surrounded by mesoderm and endoderm. Ecdysis A process by which…

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: Nematodes body is covered with epidermis (True/False)?

A: Nematode is an invertebrate belong to the Nematodia class. They are usually referred to as…

Q: Compare and contrast the body coverings of a free-living turbellarian, a monogenaen fluke, a…

A: Free-living Turbellarian Named after turbulence created by the cilia in water.  These are free…

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.