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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 Rotifera Rotifers have a ciliated crown, the corona, that is characteristic of the phylum. Phylum Rotifera Rotifers come in a wide range of colors and shapes.
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Protostomia: Lophotrochozoa
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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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Smaller Protostome Phyla Chapter 21 Small Coelomate Phyla Several small phyla of protostome coelomates include examples from superphyla Lophotrochozoa and Ecdysozoa ...
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Now Three Domains and 6 Kingdoms. Conventional Classification of ... Hydra. sea pens. soft corals. 2 tissue layers: ectoderm, endoderm. sea anemones. jellyfish ...
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Fig. 32-2-3 Zygote Cleavage Eight-cell stage Cleavage Blastula Cross section of blastula Blastocoel Gastrulation ... Cleavage (b) Coelom formation Coelom Key Ectoderm ...
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Reproductive system is not well understood: Only female reproductive organs have been identified. ... Pigs become infected by eating grubs.
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An introduction to animal diversity BY Carlos Paez
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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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Az llatvil g soksz n s ge (32) Le rt fajok sz ma: 1,3 milli Becs lt fajsz m: 10-200milli Legkor bbi llati fossz li k: Ediacara fauna (600 milli ...
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infection via ingestion of eggs (finger/uncooked veggies) ... migrate to anal region at night/lay eggs (Scotch Tape Method) itching ...
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... on trouve de l ADN dans le noyau mais aussi dans les mitochondries ADN ADN ADN ADN ADN ... Genetics 137:243 Carte du g nome mitochondrial du marsupial ...
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Chapter 32 Introduction to Animal Evolution 26.16 Our changing view of biological diversity 26.1 Some major episodes in the history of life. Note that molecular ...
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Das ultimative Quiz Systematik Tiere & Pflanzen 2 Unter einer GATTUNG versteht man A eine Gruppe nahe verwandter Arten B eine Gruppierung von mindestens 2 Arten ...
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Protostome Animals
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Parasites of nearly all animals and plants. Facts, cont. ... Feed on rotifers, tardigrades, annelids, other nematodes ... Tube-within-a-tube digestive system ...
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... dinoflagellates key link in marine food webs UNIRAMIA Subphylum Uniramia (uniramians) centipedes, millipedes, insects terrestrial UNIRAMIA uniramous appendages: ...
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... Class Polychaeta Class Oligochaeta Class Hirudinida Polychaeta is a paraphyletic class because ancestors of the clitellates arose from within it.
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The first bilaterally symmetrical coelomates Figure 33-15 Lima scabra Scallops live on the surface of the substrate and suspension feed.
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The Cambrian Explosion and Beyond
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Evolution in the Fossil Record and Molecular Clocks
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A Deuterostomia eredete Protostomia ( ssz j ak) Deuterostomia ( jsz j ak) utols k z s s (utols k z s Bilateria s) a blastoporus sorsa az ...
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Hurdia from the Burgess Shale. Hurdia. Amongst the most primitive and oldest known of true arthropods. ... Survived until Early Permian (about 280 million years ago) ...
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Several small phyla of protostome coelomates include examples from superphyla ... the tube-dwelling vestimentiferan worms found at hydrothermal vent systems. ...
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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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ANIMALIA Domain Eukarya, Kingdom Animalia Linnaeus classification: 2 Kingdoms (mid-1700s) Whittaker classification: 5 Kingdoms (1959) http://coralreefwatch.noaa.gov/ ...
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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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Chapter 32 Introduction to Animal Evolution
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Corona ciliated crown, beats like rotating wheel ... Protonephridial tubules with flame cells empty to bladder; then to cloaca. Osmoregulation ...
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Phylum Rotifera ~2000 species Corona of ciliated cells Pseudoceolomic Central nervous system Complete gut Many species are female only Parthenogenetic Phylum ...
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Recall that Bilateralia includes two great groups of organisms Protostomia and ... Beginning of organogenesis. Significant segmentation ...
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Fig. 26-3 Species: Panthera pardus Genus: Panthera Family: Felidae Order: Carnivora Class: Mammalia Phylum: Chordata Kingdom: Animalia Archaea Domain: Eukarya
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Large plates in the hookworm's mouth are used to cut the intestinal lining of the host. ... In children a hookworm infection can stunt growth and cause a ...
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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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Radial symmetry with central digestive (gastrovascular) cavity. ... They are important as reef builders. Phoronids are marine worms. Brachiopods resemble clams. ...
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Invertebrates Packet #38 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Evolutionary Connection ...
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Are very diverse in form and habitat. Most reproduce sexually. Have a characteristic pattern ... 1. Separation of annelids and arthropods into different clades ...
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AN INTRODUCTION TO ANIMAL EVOLUTION ECDYSOZOA Bilateral animals are divided into two clades Protostomes Deuterostomes Protostomes are themselves divided into two ...
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... even though they don t have coeloms Nematoda Note that body cavity is not contained within mesoderm Note body cavity is contained within mesoderm A body ...
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(most obvious in: sea urchins, amphibians, ascidians) ... Amphibian development: Xenopus laevis. Animal hemisphere (pigmented in some species) ...
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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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Animals and Animal Diversity The Nitty-gritty! Note: There is no red on this powerpoint, all non-essentials were deleted from the notes. Just imagine that everything ...
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Phylogeny and Systematics Chapter 10 * * * * * * * * * * * * * * * * * * * * * * * * * * * * Taxonomy A theory of taxonomy allows us to rank taxonomic groups.
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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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migrate to anal region at night/lay eggs (Scotch Tape Method) itching ... eggs develop/become infective w/i 6 hrs at body temp. ...
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Phylogeny and Systematics Chapter 10 * * * * * * * * * * * * * * * * * * * * * * * * * * * * Taxonomy A theory of taxonomy allows us to rank taxonomic groups.
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A comparative overview of the Animal Kingdom * * * * * * * * * * * * * * * * * * * * * * * * * * * * * General Features of Animals Animals are the consumers of the ...
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Rotifers are one example small, aquatic filter feeders. Males need not apply. ... Hirudinea Leeches. Related to Oligochaetes, they suck blood. Once used ...
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They have a true coelom, the fluid filled body cavity is completely lined in ... Coelom Formation: In gastrulation, the developing of the digestive tube, there ...
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Qu a apport la g nomique la phylog nie des animaux ? Herv Philippe D partement de Biochimie, Centre Robert Cedergren, Universit de Montr al, Succursale ...
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Chapter 32-34: Animal Diversity Objectives Define common characteristics amongst all animals Animals can be characterized by body plans Molecular data is ...
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By definition, in true coelom- mesentery. tissue connects organs to body cavity wall ... Also, by definition coelom is fluid-filled body. cavity, found in ...
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