Until recently the choanoflagellates were considered to be part of the zooflagellates margulis and schwartz 1988, 1998. With reference to the phylogenetic position of the mesozoa. Seven phyla of protozoa are accepted in this classificationsarcomastigophora, labyrinthomorpha, apicomplexa, microspora, ascetospora, myxospora, and ciliophora. Outline classification of protozoa by levine et al. Zoology 1120 exam 1 chapter 7 the reproductive process 21 terms. Biology 18 spring, 2008 1 lab 6 phylum arthropoda objectives. The labyrinthulomycetes or labyrinthulea are a class of protists that produce a network of filaments or tubes, which serve as tracks for the cells to glide along and absorb nutrients for them. Whether youve loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. Pdf the subkingdom protozoa now inclues over 65,000 named species, of which over half are fossil and approximately 10,000 are parasitic.
Xenacoelomorpha a new phylum in the animal kingdom by maxplanckgesellschaft modified phylogeny. In some genera amoeboid cells move within network by gliding. Diagnoses are given for these and for all higher taxa through suborders, and reporesentative genera of each are named. Acoelomorpha, platyzoa, and mesozoa questions and study. The two main groups are the labyrinthulids or slime nets and thraustochytrids. Describe the characteristics of the phylum arthropoda. Classification of phylum mollusca according to rup. The classical taxonomic scheme of the protozoa was devel oped about the turn of the century. Resources in this collection include lesson plans, essays, and webbased. Infections range from asymptomatic to life threatening, depending on the species and strain of the parasite and the resistance of. All members of this phylum are parasitic and evolved from a freeliving ancestor. Classification of phylum nematoda according to rup. Animal diversity ii phylum annelida and phylum arthropoda today we will study the annelids, the segmented worms, and the arthropods, a huge group that contains insects, spiders, and crustaceans.
Colpodella is the genus with freeliving species most closely related to. Plasmodium, a sporozoan protozoa, belongs to phylum apicomplexa. A newly revised classification of the protozoa levine. Trophic stage having ectoplasmic network, with spindle shaped or spherical, nonamoeboid cells. Also, they share with molluscs the presence of a true coelom. They are mostly marine, commonly found as parasites on algae and seagrasses or as decomposers on dead plant material. Structure, classification, growth, and development.
Gereral characters these are microscopic, animalcule but few are visible to the unaided eyes. Many genera of microsporidia are pathogenic to invertebrate hosts and several genera contain members capable of infecting protozoans, amphibians, reptiles, birds, and mammals. A new revised classification of the protozoa article pdf available in the journal of protozoology 271. The phylum microsporidia balbiani 1882 contains an array of obligate intracellular parasites known to infect all major animal groups canning and lorn, 1986. Other readers will always be interested in your opinion of the books youve read. Apicomplexa is a large phylum of parasitic protists belonging to the alveolata. The acoelomorpha are a group of animals with features that were once put in the phylum platyhelminthes flatworms in 2004 molecular studies showed that this was wrong now it is clear that their closest relatives are the xenoturbellida, and the two groups make up the proposed new phylum, the xenacoelomorpha most researchers believe them to be basal among the bilateria, slightly more. Chapter 10 acoelomate phyla spring 2014 zoology tamuc class lectures and a bit of the book learn with flashcards, games, and more for free. However, the choanoflagellates do not fit within that group very well, which prompted sleigh et al. Linnaeus included 2 species of free living protozoa in the 1758 edition of his system naturae, but he included no parasitic ones. Class orthonectida infect echinoderms, nemerteans, annelida, turbellaria, mollusca.
Acoelomorpha simple english wikipedia, the free encyclopedia. Cells are quadrate, cylindrical, or slightly swollen, sometimes constricted at the cross wall, walls are often lamellate, each with a parietal chloroplast and perforated to. Ppt protozoa powerpoint presentation free to download. Most species free living, but many commensal, some truly parasitic, and a large number found as phoronts on a variety of hosts. Most species are free living, but all higher animals are infected with one or more species of protozoa. There are undoubtedly thou sands more species still unnamed. In some genera, however, amoeboid cells move within the cytoplasmic network by gliding. Labyrinthomorpha a group of mostly saprotrophic protists. In it they were considered a phylum and were divided into 2 subphyla, plasmodroma containing the classes mastigophora, sarcodina, and sporozoa and ciliophora. Ciliophora, contohnya balantidium sp, nyctoterus ovalis hidup sebagai parasite pada organisme lain berdasarkan alat gerak yang dimiliki, maka protozoa dibedakan atas empat kelas yaitu rhizopoda, mastigophora, sporozoa dan ciliata. Classification of phylum porifera according to rup. Animal diversity ii phylum annelida and phylum arthropoda. Study 31 terms chapter 10 acoelomate phyla flashcards.
They have adapted successfully to all environments, modifying in a variety of ways. The apicomplexa are a monophyletic group composed almost entirely of parasitic ie, no freeliving species. Sea sponges have no symmetry or cephylization and have no organs. The apicomplexa also called apicomplexia are a large phylum of parasitic alveolates. Most species are marine, forming colonies on the surfaces of algae and seagrasses. Class dicyemida infect kidneys renal cells of cephalopods. Phylum microspora not to be confused with the green algae genus microspora contains some of the most unusual fungi. There are undoubtedly thousands more still unnamed. Protozoa are onecelled animals found worldwide in most habitats. We tentatively define this clade as one of the supporting stems of crown group tetrapoda. Outline classification of protozoa by levine et al1980.
Three tissue layers are present in both of these groups. Xenacoelomorpha a new phylum in the animal kingdom. The phylum apicomplexa is a large group of parasitic protists with more than. From porifera to chordata, animals have come a long way. Classification of living things free download as powerpoint presentation. Free living or basally attached at least initially, microspora has a bipartite wall structure usually evident.
The reference is to the intricate slime nets that they produce and move through. Free living protozoa have even been found in the polar region and at very high altitudes. In it they were considered a phylum and were divided into 2 subphyla, plasmodroma con taining the classes mastigophora, sarcodina, and sporozoa. Labyrinthomorpha, a pathogenic parasite of small juvenile abalone in a british columbia mariculture facility. This resource collection takes students into the field and engages them in life science research. A small phylum of free living organisms that produce networks of slime in which spindleshaped cells, about 10. Sea sponges are multicellular, but not all of the cells its made of work together, instead, they each have a job to keep the sponge alive and reproducing. Various protozoan species are parasitic and are found in association with many of the animals and plants. Between 1674 and 1716, he described, in addition to freeliving protozoa, several. Unique cellsurface organelle, associated with ectoplasmic network. The real turn to terrestriality begins here, with the reptiliomorpha. Biology assignment help, phylum labyrinthomorpha protozoan, phylum labyrinthomorpha protozoan trophic stage, ectoplasmic network with spindle shaped or spherical nonamoeboid cells. Understand the taxonomic relationships and major features of arthropods learn the external and internal anatomy of the crayfish and an insect use the live and preserved invertebrate specimens to understand the major advantages and limitations of exoskeletons in relation to the hydrostatic skeletons. Classification of phylum cnideria according to rup.
Includes free living flatworms planaria and parasitic forms flukes and tapeworms. Both classes consist of free living and parasitic worms that live in a wide variety of habitats. The phylum sarcodina is comprised of protozoan, or sarcodines, that share several characteristics. Laboratory exercise 6 phylum arthropoda arthropods are the most successful of the animal phyla in terms of numbers of individuals, numbers of species and diversity of form. Trophic stage, ectoplasmic network with spindleshaped or spherical, nonamoeboid cells. They are distinguished from each other through anatomical features. There are over 1200 described species in this phylum and that is only a fraction of their biodiversity, divided into about 150 genera plural of genus. Saprobic or parasitic on algae, mostly in marine and estuarine water. Arthropod classification 1 welcome 2 welcome to the first unit in eny. In this article we will discuss about the need and modern trend of classification of animals. Labyrinthomorpha labarinthomorfa is derived from a latin root that means labyrinth labyrinthum and a greek root meaning form morphe. Diagnoses are given for these and for all higher taxa through suborders, and representative genera of each are named. The xenacoelomorpha represent the fourth phylum of the deuterostomia.
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