Body bilaterally symmetrical . Phylum Porifera (Sponges). General Characteristics of Phylum Arthropods: Some of the general characters of Phylum Arthropoda are listed below: 1. The phylum name comes from the Latin words porus, which means "pore," and ferre which means "to bear." 5. Phylum Coelenterata includes nearly 11,000 known species half of which are extinct. The Chordata phylum is the phylum which we are the most physically familiar with, as we ourselves are Chordata. Animals are then broken down into two types: vertebrates and invertebrates. The nematodes or roundworms constitute the phylum Nematoda (also called Nemathelminthes). Their bodies are covered with the hard shell made up of chitin, forming and exoskeleton. Phylum Mollusca (General characteristics … Besides these, many arthropods are not yet unidentified. They are a diverse animal phylum inhabiting a broad range of environments. ... All Chordates have these openings on the lateral sides of the pharynx at some stage of their life. According to Hyman phylum, Coelenterata has been classified into 3 classes. They have the characteristic notochord, dorsal nerve cord, pharyngeal slits. Phylum Arthropoda is the largest animal group which constitutes the largest percentage of the world’s organisms. 4) has a head and thorax that are fused (a cephalothorax) and a large abdomen. Phylum Arthropoda includes animals that have been successful in colonizing terrestrial, aquatic, and aerial habitats. Body is divided into three parts, head, thorax and abdomen - the distinguishing feature of insects: Head has one pair of antennae. Comparison of the Major Animal Phyla Common NameCommon Name (Phylum) Snails, Clams, SquidSnails, Clams, SquidSnails, Clams, Squid (Mollusca) Insects, Arachnids, CrustaceansInsects, Arachnids, Crustaceans (Arthropoda) Sea Stars, Sea Urchins Sea Stars, Sea Urchins (Echinodermata) VertebratesVertebrates (Chordata) Level of The Phylum Arthropoda is the largest and most diverse of all animal phyla.Arising first in the ocean, they were the first animals to invade land. It is a phylum of triploblastic, haemocoelomic, segmented invertebrates having head, thorax and abdomen, a chitinous exoskeleton and … It includes well over one million described species. Phylum Chordata. Commonly Called. Platyhelminthes are flatworms. James H. Thorp, in Encyclopedia of Insects (Second Edition), 2009. Answer (1 of 2): Jointed legs are present on their body and thus they are named as arthropoda (arthro means jointed and poda means foot). All are aquatic and almost all are marine. Characteristics. Phylum Chordata is the most familiar phylum in the animal kingdom as it includes all animals that possess, ... Let us have a detailed look at the characteristics and classification of phylum Chordata. Body Form: It varies considerably. It is estimated that about 84% of all known species of animals belong to this phylum and number of known species vary between 1,170,000 and 5 to 10 million. It contains all the insects, crabs, lobsters, spiders, and scorpions. Within the phylum, traditional classification is based on mouthparts, number of appendages, and modifications of appendages present. Unlike sponges, they have bodies that are radially symmetric, which means one side resembles the other if the animal is cut in half. Example Phylum: Arthopoda. The phylum Arthropoda is the largest animal phylum. Kingdom - Animalia Phylum - Arthropoda Class - Insecta. The single-celled condition is an important feature which sets the protozoa apart from all other animals. 3. Characteristic Features of Phylum Chordata. This phylum is commonly called sponges. Phylum Echinodermata 11. Annelida: Annelida lacks a distinct head. These are very successful animals due to a protective exoskeleton and jointed appendage. Thus it is the largest phylum (Snodgrass, 1952) of the animal kingdom. Annelida: Annelids are commonly called segmented worms. For example, animals belonging to Class Insecta have three distinct segments: the head, the thorax (often grouped together with the head as the cephalothorax), and the abdomen.The rhinoceros beetle (Fig. The Animal Kingdom. General Characteristics and Classification of Arthropoda Arthropoda (Arthon- Jointed; podos- legs) Arthropoda, animals having jointed appendages or legs. The key difference between mollusks and arthropods is that mollusks are soft-bodied invertebrates with one or two shells while arthropods are animals with segmented bodies, paired appendages and an exoskeleton.. Phylum Mollusca and Phylum Arthropoda are two major vertebrate phyla that include the highest number of species diversity than any phyla in the Animal Kingdom. Sponges, or phylum Porifera, are one of the most common types of invertebrate animals.Currently, there are about 3,000 documented sponge species. 2. the phylum is so named because most sponges bear holes. These jointed appendages variously specialized for feeding, locomotion, sensing . 2. Arthropoda [1] The phylum Arthropoda is the largest and most varied in the animal kingdom. Most of them are free moving (except sponges and some coelentrates) Nutrition is primarily ingestive. These animals have versatile habitat and are found in air, water and on land. Generally, arthropods are characterized by a segmented body (consisting of a head, thorax, and abdomen) as well as jointed appendages. Arthropods are segmented, and generally there are distinct boundaries between the segments. The group includes corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans. The number of species is estimated to be between 5,000 and 10,000. 9.1 Nematodes. Exoskeleton containing chitin . Reproduction […] Kingdom Animalia: Phylum Arthropoda. Cnidaria are also simple, aquatic animals. Arachnids are classified in the Phylum Arthropoda, which also consists of crustaceans, insects, centipedes, and millipedes. Central vacuoles are absent but small vacuoles may occur. PHYLUM ARTHROPODA . Phylum Aschelminthes; Phylum Arthropoda; Download Animal Kingdom Cheat Sheet Below. Major External Characteristics . Basic Features: Insects are a class in the Phylum Arthropoda, so they have all of the characteristics of the Arthropods. The bodies of these animals are also segmented but these segments are external. they belong to the phylum Arthropoda and nearly found in every habitat of the biosphere. In the basic body plan, a pair of appendages is present per body segment. This represents approximately three-quarters of all known biological organisms, living or extinct. The classification followed here is given by Hyman, L. H., (1940). Arthropods bear a chitinous exoskeleton. Arthropoda is treated here as a monophyletic clade of genetically diverse but evolutionarily linked species. 1. All animals belong to a biological kingdom called kingdom Animalia.This kingdom is then broken down into over 30 groups, or phyla (plural form of phylum).About 75% of all species on Earth are animals. Habitat: ADVERTISEMENTS: They occur on land, in the soil, in sea water, in fresh water and in the bodies of animals and plants as parasites. ... Phylum Arthropoda is the largest group of the animal kingdom, ... Habitat: They are commonly called spiny skinned animals. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Characteristics of Phylum Arthropoda . 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