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Introductory Zoology Laboratory

by: Selmer Parker

Introductory Zoology Laboratory ZOO 1121

Marketplace > University of Oklahoma > Animal Science > ZOO 1121 > Introductory Zoology Laboratory
Selmer Parker
GPA 3.68

James Thompson

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About this Document

James Thompson
Class Notes
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This 3 page Class Notes was uploaded by Selmer Parker on Monday October 26, 2015. The Class Notes belongs to ZOO 1121 at University of Oklahoma taught by James Thompson in Fall. Since its upload, it has received 22 views. For similar materials see /class/229239/zoo-1121-university-of-oklahoma in Animal Science at University of Oklahoma.


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Date Created: 10/26/15
Animalia Phyla Protozoa 0 Microscopic single celled organism o Exists in colonies also I Colonial protozoa volvox Porifera o Simplest multicellular phylum o Sponges 0 Made of protein base and crystalline material 0 Cell specialization but no tissues I Porocyte creates pore in sponge Food particles enter through pores water exits Coanocyte collar cell flagellum draws in food particles and water 0 Food is then phagotized or transferred to amoebocyte Amoebocyte carries food particles to other cell sites synthesizes protein and crystalline structure Epidermal cell creates outer covering Cnidaria 0 First multicellular phylum with true tissues Diploblastic o Jellyfish anemones corals hydra 0 Gets nutrientsthrough diffusion body covering isthin 0 Body plan I Radial symmetry round I Combined mouthanus I Dimorphism Polyp Medusa 0 Cell types I Muscle I Nerve I Digestive Reproductive I Sting cells nematocysts Platyhelminthes 0 Tissue specialization First triploblastic o Flatworms tapeworms planaria flukes 0 Body plan I Large flat body I Combined mouthanus o Branched digestive tract nutrients diffuse into cells 0 First phylum to show bilateral symmetry I Allows for oriented directed movement I Leads to cephalization creation of a head 0 Anterior head concentration of sense organs 0 Posterior tail end Nematoda 0 True tissues 0 Round worms 0 Body plan I Body too thick for diffusion 0 First system to transport nutrients throughout body 0 Muscle layer transports nutrients o Pseudocoelomic cavity muscle not completely lined by tissue on all sides I More flexible I First complete digestive tract 0 Specialized parts 9 more efficient digestion o No circulatory or respiratory system 0 Little cephalization Mollusca 0 quotsoft body 0 Snails clams oysters squid octopi O 0 Most common phylum other than arthropoda Body plan I Muscular foot to move I Visceral organ mass above foot I Set of tissue around mass that secretes shell o In 0 1 2 or 8 parts I Limey shell I Respiratory system feathery gills under mantle o Octopus has brain most similar to humans in invertebrates Annelida o Segmented worms Triploblastic Large body so circulatory system is needed 000 Body plan I Sectioned coelomic cavity 0 Waves of movement I Circulatory system 0 Branches out in entire body 0 Five major branches 5 hearts I Clitelum 0 Reproductive sector of body 0 Both spermegg forming tissue I Excretory system 0 Kidney like structure filters waste I Bilateral symmetry o Cephalization 0 Three main groups I Marine worms polychaetes I Earthwormsoligochaetes I leeches


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