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Title: Phylum Nemertea & Phylum Chaetognatha Author: Marine Tech Last modified by: User Created Date: 11/25/2000 10:09:34 PM Document presentation format
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Hydrostatic mesenchyme and muscular antagonistic system. Small ... After prey subdued, it is drawn into mouth. Fig. 6. How do Nemerteans feed themselves? ...
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Acoelomate Bilateral Animals Acoelomate Bilateral Animals Consist of phyla: Phylum Platyhelminthes Phylum Nemertea And others Acoelomate Bilateral Animals Simplest ...
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PHYLUM NEMERTEA 900 spp. A. Tubulanus, C. Carinoma, D. Cerebratulus, E. Lineus, F. Paranemertes, G.Carcinonemertes, H. Malacobdella, I. Nectonemertes D I V E R S ...
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How do the acoelomates fit in? Nemertea Platyhelminthes acoelomate Complete digestive system acoelomate Closed circ. system Ladder-like nervous system
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Outline Evolutionary Relationships Acoelomates (sort of ) Phylum Platyhelminthes Phylum Nemertea Gnathiferans Phylum Rotifera Phylum Acanthocephala
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The Worms Phylum Platyhelminthes Phylum Nemertea Phylum Nematoda Phylum Annelida Bilateral Symmetry One way to cut and get 2 identical halves Front (anterior) and ...
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Phylogeny of some lophotrochozoan worms Annelida Sibloglinidae Polychaeta Sipuncula Nemertea feeding structure coelomic cells
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Lophotrochozoa ... These are the Mesozoa, Nemertea and four phyla grouped ... made up of only 20-30 cells arranged in two layers, which are not homologous to ...
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PHYLUM RHYNCHOCOELA Disebut Nemertea atau Nemertina. Habitat : Umumnya terdapat di pantai, di bawah batu dan rumput laut; beberapa hidup di air tawar atau di tanah ...
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Attach to substratum by secretions from an adhesive sac, then metamorphose to adult form. New colonies begin from this single metamorphosed primary zooid, ...
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Polyzoa and Kryptozoa Chapter 15 * * * * * * * * Lophophores Phylogenetic evidence indicates that lophophores evolved more than once. Lophophores have a crown of ...
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(Plat = flat) There are three classes: Turbellaria Trematoda Cestoda Characteristics of Flatworms They are acoelomates (they don t have body cavities) ...
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Chapter 33 Lower Invertebrates Animals 1 million species of animals 95% are invertebrates! 34-36 phyla of the Animal Kingdom 1. Phyla Calcarea & Silicea ...
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The body consists of an anterior scolex solely for attachment to the host's gut and a string of proglottids, each of which possesses both male and female organs aka ...
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chapter 33 invertebrates
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Animal Kingdom Invertebrate Phylum Porifera The sponge Symmetry? Germ layers? Body cavity? Level of organization? Cool characteristics: Choanocytes Amoeboid cells ...
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... the fusion and specialization of formerly metameric segments Class Polychaeta Many are filter-feeders with specialized structures Class Polychaeta Many are ...
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Non-Coelomate Animals Porifera Simplest metazoan Cell level of organization Few cell types No true tissues Feed on material suspended in water Motile as larva ...
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... (4,500 species) Ectoprocts A brachiopod Brachiopoda (335 species) Rotifera (1,800 species) A rotifer (LM) A ctenophore, or comb jelly Ctenophora ...
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Title: Author: Masaru Wada Last modified by: Masaru Wada Created Date: 11/12/1997 5:26:32 AM Document presentation format
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increase in body size possible (follows from 1) storage area for organs, separates organs from gut ... http://sorrel.humboldt.edu/ ~els15/Zoo314.html ...
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Title: Major Divisions of Life Author: kmcghee Last modified by: John Taylor-Lehman Created Date: 8/24/2003 7:39:20 PM Document presentation format
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The most primitive of all the phyla. Mesoderm is called parenchyma. Has no anus. Nerve system connected to brain. Primitive kidneys. ...
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... flatworms, but some are found on aquatic hosts as ectoparasites or commensals ... Facultative- on host only part time; e.g., leech ...
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Cryptic location. Camouflage. Regnerative ability. Haliclona sp. Location. Protection ... Note that anemones have no medusa form, but do have functional gonads ...
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Animal Diversity A whirl-wind tour through the most prominent phyla! Animal Phylogeny Modern Based on sequences in ribosomal RNA (molecular systematics ...
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These animals are also triploblastic they have three embryonic germ layers. Organ-system level of organization more division of labor among their organs.
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About 2000 species have been described. 9.1 Phylum Rotifera The beating of the cilia in the corona draws in plankton-containing water for food.
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The vast majority of animal species belong to the clade Bilateria, which ... Phylum Mesozoa is considered a 'missing link' between protozoa and metazoa. ...
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Biology II Lab Practical Review Part II Last updated 11-29-07 Orders of Placental Mammals Sirenia Rodentia Proboscidea Perissodactyla Perissodactyla Lagomorpha ...
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Title: Phylogeny and Systematics Author: Nancy Wheat Last modified by: NANCY WHEAT Created Date: 2/11/2006 3:37:02 AM Document presentation format
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Monofilia Parafilia Polifilia CLASSIFICA O TRADICIONAL DO REINO ANIMALIA Grupos de afinidade incerta Filos Mesozoa, ...
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Central nervous system = simple brain (aggregation of nerve cells) ... These individuals were photographed on a reef near the island of Guam. 3 Groups of Flatworms ...
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Chapter 33 Invertebrates Let s meet the Invertebrates Life Without a Backbone Invertebrates Are animals that lack a backbone Account for 95% of known animal ...
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Fig. 14.10 ACOELOMATE ANIMALS 14.1. General Features A. Cephalization 1. Sessile animals survive well with radial symmetry. 2. Concentrating the sense organs on the ...
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is a closed, fluid filled cavity that surrounds the gut ... each metamere consists of several annuli (think accordion) 1 metamere. annuli. Class Hirudinea. Locomotion ...
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Radial symmetry with central digestive (gastrovascular) cavity. ... They are important as reef builders. Phoronids are marine worms. Brachiopods resemble clams. ...
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Flatworms, Mesozoans, and Ribbon Worms Chapter 14 * * * * * * * * * * * * * * * * * * * * * * * Bilateria Most animals have bilateral symmetry. The vast majority of ...
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Mostly sexual with flagellated sperm and nonmotile egg ... Spiral cleavage,Mouth develops form blastopore,mesoderm splits to form coelom ...
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KEY ANNELID FEATURES. segmentation, with segments clearly separated by septa ... metanephridia - excretion in annelids. from: Jan A. Pechenik (2000) Fig. 13.2 ...
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Phylum mollusca 'mollusks' Over 150,000 spp; mostly marine ... Mollusk anatomy. Important consumers: Filter feeders. Grazers. Carnivores. 3 Main body parts: ...
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General Body Plan Diploblastic epidermis gastrodermis Tissue Radially symmetrical Cnidocytes
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Bilateral symmetry right/left sides. Cephalization head ... Efferent ductules small tubes, carry sperm. Seminal vesicle stores own sperm. Female System ...
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General Body Plan Diploblastic epidermis gastrodermis Tissue Radially symmetrical Cnidocytes
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Filo Moluscos N mero de especies Caracteres Generales del Filo Moluscos Caracteres Generales del Filo Moluscos Clasificaci n del Filo Moluscos Clase Caudofoveados.
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Document characteristics and life history strategies that facilitate survival and define phyla ... Pisces = Fish. Aquatic vertebrates bearing fins rather than ...
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quill & hair. bat wing & hand. 2 individuals. structures have same developmental ... These fossilized tracks may push the date of land arthropods back into the ...
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Cnidaria Anthozoa More species than Hydrozoa or Scyphozoa No medusa stage Polyps more complex than in other classes Gut contains septa to add surface area for ...
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They do disagree, however, about how these are interrelated ... Increase in size by molting their external skeletons ... Molt cuticle four times ...
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Phylum Chordata the chordates
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... No two kinds of animals have the same binomial name Every animal has one correct name International Code of Zoological Nomenclature Genus ... microbes live in ...
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Some free-living; some parasitic (may have several hosts) 4 Classes. Turbellaria. Trematoda ... Most free-living, carnivorous. 5 mm to 50 cm. Locomotion ...
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Aula submetida Banca do Concurso P blico para provimento de uma vaga como Professor Adjunto do Magist rio Superior do Departamento de Ci ncias Biol gicas da ...
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... (Dracunculus medinensis): transmitted by infected copepods in drinking water larvae move into the body cavity female adult migrates to the subcutaneous ...
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Close-up of feather-duster worm (Polychaeta: Sabellidae) 'radioles' ... Hymenoptera (bees wasps and ants), Neuroptera (lacewings, ant lions, dobson flies) and ...
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