What are some general features of the phylum Platyhelminthes and describe two.

Q: What is the main external morphological feature thatdifferentiates platyhelminthesfrom other worms…

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

Q: How can Strongyloides and hookworms be differentiated in terms of their morphology?

A: Strongyloides stercoralis is one of the smallest parasites known to infect humans. Hookworms are…

Q: Which of the following are shared-derived* characteristics of the species found within the Genus…

A: Shared derived characters among Genus Paranthropus.

Q: What is the tissue origin of the following: Placoid Scales Cosmoid Scales Ganoid scales Cycloid…

A: scales in fishes.

Q: What is the basic anatomy of a flatworm (scolex, proglottids)

A: Ans. Taxonomy is the science of the classification of organisms. Each species found so far has been…

Q: What is the phylum of scoliodon?

A: Introduction  Scoliodons are commonly called as Shark or Dogfish. They come under kingdom animalia.…

Q: What is phylum-echinodermata with its diagram?

A: The phylum Echinodermata belong to the animal kingdom. The members of this phylum have endoskeleton…

Q: What invertebrate groups exhibit hydrostatic skeletons? What is the importance of the hydrostatic…

A: Invertebrates are those which do not have vertebral column.

Q: Which are the morphological features that differentiate the beings of the phylum Annelida from…

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

Q: What are three organs found in Platyhelminthes that were not found in Cnidari

A: Flatworms are more advanced than cnidarians. Cnidarians are diploblastic whereas Platyhelminthes…

Q: Distinguish each of the following orders from the others: Araneae, Scorpiones, Opiliones, Acari.

A: The phylum Arthropoda is composed of animals with jointed appendages or legs. It is a phylum of…

Q: Some evidence suggests that members of Acoelomorpha constitute the sister group for all other…

A: Acoelomorphs are small, flatworms whose length is less than 5 mm. This group comprises around 350…

Q: dentify and label the parts of the following specimens of Phylum Annelida:

A: Phylum Annelida includes all the segmented worms and lacks vertebral columns hence are…

Q: What characters unite rotifers and acanthocephalans as members of clade Syndermata?

A: Animal phylogeny is a rapidly changing field for the biologists. Even if the members of animal…

Q: What are the classes into which the phylum Echinodermata is divided?

A: Echinoderms are the marine organisms that belong to the kingdom Animalia. They are triploblastic…

Q: Which Platyhelminthes class lack teguments and why?

A: The classification of phylum-Platyhelminthes is based on the mode of life, i.e. Free living or…

Q: What phylum is the closest relative of nemertines? Why?

A: Nemertines:  Nemertea, sometimes known as ribbon worms or proboscis worms, is a phylum of organisms.…

Q: Identify and label the parts of the following specimens in Phylum Arthropoda

A: Arthropoda This is the largest phylum of Animalia which includes insects . Over two thirds of all…

Q: How do the gills of Labea and Scoliodon differ?

A: The genus Labeo includes oily fishes that inhabit the freshwaters. They are classified under the…

Q: Label the parts that are visible of these rotifers and acanthocephalans: 1. Rotifer from class…

A: Rotifers are microscopic aquatic animals belonging to the phylum Rotifers. These are usually found…

Q: What are some adaptive advantages of a pseudocoel compared to the acoelomate condition?

A: In animals the body cavity (coelom) is the area or free space that contains all the organs suspended…

Q: List the characteristic feature of sacrodines.

A: Protozoa are single-celled organisms. They come in many different shapes and sizes ranging from an…

Q: Give 2 similarities and 3 differences between Chondrichyes and Petromyontida.

A: The animal kingdom is divided into several phyla for their diverse properties. Every phylum also…

Q: What are the two main subdivisions of the phylum Chordata?

A: Phylum chordata consists of animals that have a characteristic NOTOCHORD.  they are coelomates with…

Q: What are the criteria that delimit this phylum echinodermata to its classes? What are the striking…

A: Hi. Since you have asked multiple questions. We are answering the first one for you. Please…

Q: What is labelled diagram of Strongylus edentatus?

A: Answer: Introduction: Strongylus edentates. It is parasite in the phylum nematode eukaryotic…

Q: What are the best known representatives of the platyhelminth phylum?

A: Platyhelminthes are bilateral flatworms that derive their nutrition by being parasitic or…

Q: Examine this whole mount of Branchiostoma (amphioxus): label the notochord, myomeres, and nerve…

A: Hi, Thanks For Your Question.  Answer :  Branchiostoma do not have a true head, they only have a…

Q: What are the differences between the polyp forms of Hydra and Obelia and the Anthozoan polyps.…

A: These three organisms belong to the same phyla - Phylum Cnidaria. They are aquatic and species are…

Q: Cyclostomes are often thought as of as “primitive” because they lack jaws. In what ways could the…

A: Cyclostomata is a group of agnathans that comprises the living jawless fishes; the lampreys and the…

Q: Mention three similarities between lancelet and ammocoetes?

A: A cephalochordate is the Subphylum in the Kingdom Animalia. The vertebrates and cephalochordates…

Q: What are the layers involved in the formation of a hydra bud

A: Life originated in the waters in the world. The waters house all types of organisms. Planktons,…

Q: similarities and differences among the different classes of Hemichordata and the two subphyla of…

A: All animals are categorized into different phyla in the kingdom Animalia. The animal kingdom…

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: What is tape worm and its structure?

A: Worms can be divided into several groups, but are still technically decomposers. The first of these,…

Q: Give three division of chordata in tabular form?

A: The Phylum Chordate includes vertebrates, such as fishes, reptiles, birds, amphibians, reptiles,…

Q: What are the unifying characteristics of Sardinella tawilis under the following taxonomic ranks:…

A: Sardinella tawilis, however, is considered the most valuable fish inside the area that calls for…

Q: What are the major evolutionary features that distinguish Phylum Platyhelminthes from earlier phyla?…

A: The phylum is defined as the taxonomic rank or classification level and placed below kingdom and…

Q: Illustrate and describe the life cycle of the following:  Trichuris trichiura

A: Introduction: Whipworm infection is caused by a parasite called Trichuris trichiura. This parasite…

Q: Draw the structure of orinthorynchus, macropus,pteropus,balenoptera?

A: Step 1 The class mammalian is a group of homoiothermic tetrapod vertebrates which have a covering of…

Q: Aside from ecdysis, describe two (2) common characteristics shared by the different smaller phylum…

A: Ecdysis is the process of shedding of skin. Ecdysozoa is a super phylum arthropoda, nematoda and…

Q: Compare its general structures to Ascaris, Trichinella, and Enterobius. What structures are…

A: Cephalobus is a bacteriovorus soil nematode. It is a very sluggish organism. Body tapering slightly…

Q: How can the presence, localization and function of muscular tissue in beings of the phylum Annelida…

A: Annelids are cylindrical worms with segmented bodies (they are metameric). The main evolutionary…

Q: What phylum is a ray in? Group of answer choices Chondrichthyes Echinodermata Osteichthyes Reptilia…

A: The ray or stingray is a cartilaginous fish that has cartilaginous endoskeleton structure. They are…

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: Please draw a picture of Clonorchis (Class Trematoda) and label its anatomy with the terms listed…

A:

Q: Why scoliodon is known as dogfish?

A: The superclass-Pisces includes true fishes. It is the first true jawed vertebrate group. It is…

Q: Why are tuataras (Sphenodon) of special interest to biologists? Why are they rare?

A: The genus Sphenodon contains two living species and this comes under the order Sphenodonta. The…

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.