If nematodes are the most numerous animals, the Arthropoda, including insects, are the most diverse, accounting for more than half of all known animal species. What features have led to the remarkable evolutionary success of this branch?

Q: What characteristics shared by the three deuterostome phyla indicate a monophyletic group of…

A: Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia. Animals…

Q: three examples of species of cnidarians

A: Cnidarians are distinguished from all other animals by having cnidocytes that fire harpoon like…

Q: What are some characteristics that allowed for the evolutionary success of arthropods?

A: Introduction Phylum Arthropoda, the largest in the animal kingdom, which includes familiar forms…

Q: Only eight species of lobe-finned fishes are alive today, remnants of a group that flourished in the…

A: The Devonian Period occurred from 416 million to 358 million years ago. It was the fourth period of…

Q: hemichordates are said to be the missing link between the invertebrates and vertebrates.

A: A)INVERTEBRATES:- These are those organisms which are without any strong structural support means…

Q: What is the main evolutionary innovation presented by nematodes? What is the advantage of that…

A: Nematodes are bilaterally symmetrical, elongated organisms which play a vital ecological roles as…

Q: Is the nervous system in platyhelminthes more or less sophisticated than in cnidarians? What are the…

A: Planarians includes flatworms that belong to the Class Turbellaria. These are free-living organisms…

Q: Write “yes” or “no” to indicate how certain features distinguish each phylum of multicellular…

A: The members of kingdom Animalia are classified into different Phyla, Class, Order, Family, and Genus…

Q: What evolutionary advantages are there for invertebrates to have a variety of developmental stages,…

A: Invertebrates are a group of organisms that do not have a vertebral column. The marine invertebrates…

Q: compare cnidarians to sponges and to the clade containing flatworms, mollusks, and annelids. What…

A: RH Whittaker gave the five-kingdom classification of living organisms. He used several factors to…

Q: Are there economically important species of hexapods and myriapods?    What is their overall…

A: Hexapods  They are the six legged animals such as butterfly, bees, housefly etc.

Q: Scientific understanding of the evolution and phylogeny of the Arthropoda has changed enormously in…

A: Arthropods and annelids were thought to be closely linked for many years, with arthropods presumably…

Q: What makes hydra, planaria, salamanders, and fish so much better at regenerating than mammals?

A: Answer- Regeneration is the process by which an organism damaged or missing cells of the organisms…

Q: From which diapsid subgroup have crocodilians descended? What other major fossil and living…

A: An organism is any individual entity that embodies the properties of life. Organisms are classified…

Q: Where do invertebrates fit into the evolution history of eukaryotes? Of animals?

A: The study of relationships between distinct groups of species and their evolutionary development is…

Q: What are the reason that you can think of for the arthropods to constitute the largest group of…

A: Arthropods are the invertebrate animals that have a segmented body, paired jointed appendages, and…

Q: Make a phylogenetic tree about: Animalia ● Vertebrates ● Invertebrates ● Porifera ● Coelenterata…

A: Synapomorphies can be defined as the types of traits or characters which are present common among…

Q: How are nematodes and nematomorphs alike, and how are they different?

A: Ecdysozoans are a group of protostome animals that include nematodes, arthropods, and numerous…

Q: Q1 KIDNEY APPEARS FIRST TIME IN WHICH PHYLUM??

A: Kidney - Kidney is defined as a bean shaped organ. It is present in pairs in the body. It is used…

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

A: Animal kingdom deal with 10 major phyla.

Q: concepts for each about the general characteristics of invertebrates (as a whole) as to (a) body…

A: Invertebrate animals do not contain vertebral columns. In other words, an animal called an…

Q: What are the reasons that you can think of for the arthropods to constitute the largest group of the…

A: The phylum Arthropoda consists of invertebrate animals such as insects, arachnids, and crustaceans.…

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: Animal phylogenies based on molecular and

A: 1) Phylogenetic trees basically reconstructed from different genes in the same organism. However it…

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: How and why did sponges develop skeletons, given that they were the first animals, there were no…

A: Sponges are the simplest form of multi-cellular organisms with structural complexities. They have…

Q: The comments of N. A. Cobb quoted in the opening essay for this chapter make clear just how…

A: Nematodes area unit key elements of soil diversity and represent valuable bio-indicators of soil…

Q: List down two 2 concepts for each about the general characteristics of invertebrates (as a whole) as…

A: In today's world, invertebrates make up the vast bulk of animals. They have a wide range of physical…

Q: the common ancestor of Cnidarians were an open-ocean jelly fish, what would you infer regarding the…

A: Cnidarians is a phylum which comes under the main classification animilia  They are aquatic animals…

Q: Provide two examples from invertebrates of such ‘reverse evolution’ from a derived state…

A: Evolution refers to the change in the species characteristics over several generations. Evolution…

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: Why is bilateral symmetry of adaptive value for actively motile animals?

A: Bilateral symmetry is a pattern of symmetry where the opposite sides are normal or one side is…

Q: ng the body structures of a sea anemone, a flatworm, a nematode, an annelid worm, and a fish. Are…

A: Our world is full of biodiversity. All kind of living organism that are found on our earth…

Q: Is the tubular-dorsal nervous system of chordates associated to radial or lateral symmetry? How does…

A: In the nervous system of chordates, the dorsal nerve cord develops into nervous tissue of the brain…

Q: Based on an evolutionary perspective, do you think the present forms of cnidarians are the best…

A: Cnidarians are diploblastic organisms , they have organized tissue level, and digestion is…

Q: Which group of animals have endoskeletons? Annelids and Mollusca Cnidaria and Ctenophora O Nematoda…

A: Endoskeleton is internal bone or cartilage structure of animals which have a vertebra and some…

Q: Describe the evidence that cnidarians share a more recentcommon ancestor with other animals than…

A: Cnidarians, also known as coelenterates are mostly marine organisms and includes corals, hydras, and…

Q: Cnidarians and ctenophores are considered diploblastic, but why might some biologists label them…

A: The process of embryonic development is characterized by the formation of the primary layers called…

Q: Draw a simplified animal tree of life, indicating therelationships among sponges, cnidarians,…

A: Evolution is defined as the change in the characteristics of a particular species/organism over…

Q: What does radial symmetry means? What is the type of symmetry found in chordates? Which are other…

A: The animals are the most abundant living organism that is found in almost every habitat. They have…

Q: What are the three major events in the evolutionary history of insects? For each event, suggest one…

A: Insects are the most successful life form in 450 million year history of terrestrial life.

Q: Which of the following animal groups adopted a sedentary mode of life as adults? O P. Nematoda O P.…

A: sedentary means living in the same place for the whole of one's life; it does not indicate migratory…

Q: Describe the process of nuerological development of a member of phylum Cnidaria.

A: In this question, we have to answer the process of neurological development of member of phylum…

Q: Why are Cnidarians diploblast and other animals tripoblast based on evolution?

A: In the early developmental stages, the embryo of the vertebrates organizes itself into a…

Q: What are the similarities and differences between insects that go through com- plete metamorphosis…

A: The vast majority of people are acquainted with complete metamorphosis in childhood as a butterfly…

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 context: This activity will examine the classification of invertebrates and the methods used to…

A: Invertebrates: the animals lacking backbones and usually devoid of internal skeleton system, comes…

Q: Why do you believe squid received the name cephalopod, which means head-foot? What distinguishes the…

A: Hi dear, here's your answer. The name cephalopod, in Greek, means that "head foot." This name was…

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.