ANIMAL DIVERSITY Systematics • study of biological diversity and its origins Its arms TAXONOMY focus on properly describing‚ identifying‚ classifying‚ and naming of organisms. CLASSIFICATION focus on placing organisms within groups that show their relationships to other organisms. Writing a scientific name. • Kimberlicus beltranus • Kimberlicus beltranus The Protozoans Protozoa Alveolates Ciliates Sporozoans Dinozoans Amoeboids Amoebozoa Cercozoa
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spicules. Eg: Hippospongia communis and Spongia officinalis‚ d) Class Sclerospongiae: They are characterized by the presence of spicules constructed from calcium carbonate‚ silica and spongin. e.g. Sclerospongia sp. 2. PHYLUM COELENTERATA(Cnidaria):~ 9000 species Characteristics features: a) Radial symmetry; true tissues; sessile and/or motile b) Cnidocytes - stinging barbs to capture prey c) Tentacles to bring prey into gastrovascular cavity d) Nervous system in the form
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drift on the currents or catch the wind with their pneumatophores. To avoid threats on the surface‚ they can deflate their air bags and briefly submerge. The Portuguese man-of-war (Physalia physalis) Classification: Kingdom Animalia Phylum Cnidaria Class Hydrozoa Order Siphonophora Suborder: Rhizophysaliae Family: Physaliidae Genus: Physalia Species: Physalia physalis What is it? The Portuguese man-of-war is a spectacular object to behold. While it may look something like other well-known
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Aurelia aurita. It is one of the most common jellyfish along the Atlantic Coast. It is reportedly less venomous than other jellyfish. The Moon Jellyfish is usually translucent white‚ pink or beige. It is in the Kingdom Animalia‚ Followed by the Phylum Cnidaria. The Moon Jellyfish is in the class Scyphozoa. Its belongs to the order Semaeostomeae. It is in the family Ulmaridae and the Genus Aurelia. The Moon Jellyfish belongs to the Species A. aurita. The Moon Jellyfish has nematocysts on its tentacles
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Sponges are filter-feeders‚ taking in microscopic plankton by miniature currents created by the choanocytes. Enterozoa: Animals with a digestive cavity or tract. Radiata: Radial symmetry‚ lacking central nervous system. 2. Phylum Coelenterata (Cnidaria) Corals & Jellyfish Marine and freshwater animals with radial symmetry; this phylum has two distinct body forms: a solitary or colonial polyp and a bell-shaped‚ free swimming medusa; both polyps and medusae are often fringed with stinging tentacles;
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Asexual Reproduction in Animals Group 3 Nina Bansil Kenneth Calabia Josef Franz Cruz I. Introduction Asexual reproduction is reproduction which does not involve meiosis‚ ploidy reduction‚ or fertilization. Only one parent is involved in asexual reproduction. A more stringent definition is agamogenesis which refers to reproduction without the fusion of gametes. Asexual reproduction is the primary form of reproduction for single-celled organisms such as the archaea‚ bacteria‚ and protists
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Classification of Living Things Classification of living things is called "Taxonomy." This is when scientists put organisms into groups when they have things in common. The first groups they use are the Kingdoms. There are five kingdoms: ➢ Animal Kingdom ➢ Plant Kingdom ➢ Fungi Kingdom ➢ Protist Kingdom ➢ Moneran Kingdom Each Kingdom is then split into smaller groups‚ called Phyla. Each Phylum is split into smaller groups called Classes‚ each Class is split into
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be represented. 4. What are the two hypotheses concerning the origin of bilaterians and what are their differences? 1-Bilateria and Placozoa share a more recent common ancestor than either does to Cnidaria 2- Bilateria and Ctenophora share a more recent common ancestor than either does to Cnidaria. 5. If the stereotypical aliens from the movies (with large heads) were actually the future descendants of Homo sapiens‚ what form of heterochrony must have taken place? Peramorphorsis . –descendant
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cells which form tissues and organs * Radial>bilateral symmetry * Cephalization is the centration of sense organs in the anterior region * The rear end is the posterior * The Dorsal is the back * The ventral is the front Phylum Cnidaria * Example jellyfish * Have two forms * * * Tentacles have nematocysts which are poisons filled sacs with a coiled needle * Mouth is entrance and exit. Many jellyfish have symbiosis with photosynthetic protists. Jellyfish
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Fall 2012 BISC 120Lg – M/W/F 10 A.M. section EXAM 3 Instructor: Dr. Karla Heidelberg PLEASE READ ALL THE INSTRUCTIONS CAREFULLY. 1.DO NOT start until instructed. 2.Make sure you have a total of 9 pages. Instructions for filling in the Blue Scantron Answer Sheet: 1. Enter your name in the NAME field (your last name first)‚ and fill in the appropriate bubbles. 2. Enter your USC STUDENT ID NUMBER in the field labeled IDENTIFICATION NUMBER‚ and fill in the appropriate bubbles
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