BIO1130_lct05_StudentX3

BIO1130_lct05_StudentX3 - Cambrian and Ordivician Cambrian...

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Unformatted text preview: Cambrian and Ordivician Cambrian and Ordovician periods BIO1130 Organismal Biology 1 Université d’Ottawa / University of Ottawa 8:34 AM • Snowball earth • Slushball earth slush near da equator BIO1130 Organismal Biology Figure 20.9 2 Université d’Ottawa / University of Ottawa Early animal evolution 8:34 AM Burgess shale fossils 505 Ma Ediacara fossils 580-542 Ma Doushantou fossils 580-542 Ma BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 3 8:34 AM BIO1130 Organismal Biology Page 1 Cambrian and Ordivician Doushantuo fossils Doushantuo 590-565 Ma 590-565 590- 1 2 4 3 BIO1130 Organismal Biology 4 Université d’Ottawa / University of Ottawa 8:34 AM Ediacaran fossils 580-542 Ma 580-542 580(Mistaken point NFLD) 1 2 4 BIO1130 Organismal Biology BIO1130 5 Université d’Ottawa / University of Ottawa 8:34 AM Colonial choanoflagellates Osculum Flagellum Choanoderm Amoebocytes Pore Spicules _____ Pinacoderm Cell body ___________ spongocel l Choanocyte impt cell forFigure 26.8 dem Université d’Ottawa / University of Ottawa sponges it eats stuffs for da sponge BIO1130 Organismal Biology 6 8:34 AM BIO1130 Organismal Biology Page 2 Cambrian and Ordivician __________ choanocyte ancestor colonial BIO1130 Organismal Biology 7 Université d’Ottawa / University of Ottawa 8:34 AM Sponge sex Choanoctyes become sperm __________ archeocytes (sponge stem cells) form egg http://www.waterexplorer.com/il_cool102.htm Figure 26.7 BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 8 8:34 AM amoebacytes Corals ? BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 9 8:34 AM BIO1130 Organismal Biology Page 3 Cambrian and Ordivician Coral reefs Polyp Skelton Figure 26.13 BIO1130 Organismal Biology 10 Université d’Ottawa / University of Ottawa 8:34 AM Cnidocytes (Cnidaria) (Cnidaria) Cnidaria) Barbs Cnidocil Nematocyst BIO1130 Organismal Biology Figure 26.10 11 Université d’Ottawa / University of Ottawa 8:34 AM Body wall – hydrostatic skeleton (Cnidaria) (Cnidaria) Cnidaria) ___________ ___________ Epidermis Nutritive cell Gland cell Circ. muscle Long. muscle BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa Cnidocyte Nerve cell Figure 26.9 12 8:34 AM BIO1130 Organismal Biology Page 4 Cambrian and Ordivician Polyp Cnidaria Mesoglea Medusa BIO1130 Organismal Biology 13 Université d’Ottawa / University of Ottawa Jellyfish Gonozooid 8:34 AM Female medusa Male medusa Gastrozooid Meiosis Sperm Egg Branching polyp Fertilization Zygote Developing polyp __________ larva BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa Figure 26.11 Figure 27-8 27- 15 8:34 AM BIO1130 Organismal Biology Page 5 Cambrian and Ordivician Burgess shales – Yoho National park BIO1130 Organismal Biology 16 Université d’Ottawa / University of Ottawa 8:34 AM Burgess shales BIO1130 Organismal Biology 17 Université d’Ottawa / University of Ottawa 8:34 AM Burgess shales and its unusual invertebrates BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa Video 1, 2 18 8:34 AM BIO1130 Organismal Biology Page 6 Cambrian and Ordivician Burgess shales and its unusual invertebrates Video 1, 2, 3 BIO1130 Organismal Biology 19 Université d’Ottawa / University of Ottawa 8:34 AM Flat worms (Platyhelminthes) (Platyhelminthes) Platyhelminthes) eye spots, and cheeks Digestive system Pharynx Mouth Figure 26.16 BIO1130 Organismal Biology 20 Université d’Ottawa / University of Ottawa 8:34 AM female stuffs Flat worms (Platyhelminthes) (Platyhelminthes) Platyhelminthes) Ovary Yolk glands Oviduct Seminal ____________ Genital pore Testis Sperm duct Penis Seminal ___________ Figure 26.16 BIO1130 Organismal Biology 21 Université d’Ottawa / University of Ottawa 8:34 AM male stuffs BIO1130 Organismal Biology Page 7 Cambrian and Ordivician Priapulids Mouth Introvert covered with scalids (barbs) Trunk Caudal appendages BIO1130 Organismal Biology 22 Université d’Ottawa / University of Ottawa 8:34 AM anus mouth Echiura - spoon worms Proboscis Gutter Setae Trunk Anus BIO1130 Organismal Biology 23 Université d’Ottawa / University of Ottawa 8:34 AM Annelids (Polychaeta) (Polychaeta) Polychaeta) Jaws Teeth Palps Tentacles Eyes Setae BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa Figure 26.30 24 8:34 AM BIO1130 Organismal Biology Page 8 Cambrian and Ordivician Annelids Polychaeta Figure 26.30 Onychophora Antenna Oral papilla Jaw Claw BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 26 8:34 AM Molluscs BIO1130 Organismal Biology Page 9 Cambrian and Ordivician Mollusc traits _________ and shell Stomach and digestive gland _______ cavity Gill Radula Foot BIO1130 Organismal Biology 28 Université d’Ottawa / University of Ottawa Mollusc Radula 8:34 AM Radular teeth BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 29 8:34 AM Snails (Gastropods) Gill Anus Mantle Digestive system Mouth Foot BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 30 8:34 AM BIO1130 Organismal Biology Page 10 Cambrian and Ordivician Clams (Cephalopods) only this kid still exists Mouth Mantle Anus Gill BIO1130 Organismal Biology 31 Université d’Ottawa / University of Ottawa 8:34 AM Ammonites BIO1130 Organismal Biology 32 Université d’Ottawa / University of Ottawa 8:34 AM Clams (Bivalves) Anus Gill Mouth Digestive system Foot Mantle BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 33 8:34 AM BIO1130 Organismal Biology Page 11 Cambrian and Ordivician Arthropods (Trilobites) Video BIO1130 Organismal Biology 34 Université d’Ottawa / University of Ottawa 8:34 AM Cambrian explosion Snowball earth Burrowing Shelled arms race Developmental – hox genes BIO1130 Organismal Biology 35 Université d’Ottawa / University of Ottawa 8:34 AM Cambrian burrowers Advantages – Feeding – ____________ – Protection Ediacaran benthic zone Cambrian benthic zone BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 36 8:34 AM BIO1130 Organismal Biology Page 12 Cambrian and Ordivician Homeotic genes Hox genes Hox Fly adult Fly embryo BIO1130 Organismal Biology Figure 20-21 20- 37 Université d’Ottawa / University of Ottawa 8:34 AM Homeotic genes Hox genes Hox Normal fruit fly Homeotic mutant Homeotic mutant Antennae Haltere BIO1130 Organismal Biology Figure 21-12 21- 38 Université d’Ottawa / University of Ottawa 8:34 AM Homeotic genes Hox genes Hox Mouse adult Mouse embryo Figure 20-21 20- BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 39 8:34 AM BIO1130 Organismal Biology Page 13 Cambrian and Ordivician Homeotic genesJellyfish Hox genes Flatworm Earthworm Snail Velvet worm Crustacean Centipede Fruit fly Amphioxus Mouse Zebra fish Extinction intensity Mass extinctions n) ia br n m ia ic Ca ov n nd rd ia (E O on d ev En D te La d En n ia rm Pe d En ic ss ia Tr d En s ou ce ta re C Millions of years ago BIO1130 Organismal Biology Figure 27-14 27- 41 Université d’Ottawa / University of Ottawa BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 8:34 AM Figure 27-8 27- 42 8:34 AM BIO1130 Organismal Biology Page 14 Cambrian and Ordivician echinodurmata Starfish and relatives Adult radial symmetry BIO1130 Organismal Biology Larva bilateral symmetry Figure 34-2 Figure 34- 43 Université d’Ottawa / University of Ottawa 8:34 AM Starfish and relatives Water vascular system Madreporite Radial canal Ampulla Ring canal __________ tube feet BIO1130 Organismal Biology BIO1130 Université d’Ottawa / University of Ottawa Figure 27.3 45 8:34 AM BIO1130 Organismal Biology Page 15 Cambrian and Ordivician Brozoans BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 46 8:34 AM Lophophorates (Bryozoa) (Bryozoa) Bryozoa) Ciliated tentacles Mouth BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 47 8:34 AM Arthropoda: Chelicerata Arthropoda: (Horseshoe crab) Chelicera Pedipalp Gnathobase Walking legs Operculum Book gill cover BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 48 8:34 AM BIO1130 Organismal Biology Page 16 Cambrian and Ordivician Extinction intensity Mass extinctions n) ia br n m ia ic Ca d ov n rd ia En ( O on nd ev E D te La d En n ia rm Pe d En ic ss ia Tr d En us eo ac et Cr Millions of years ago Figure 27-14 27- BIO1130 Organismal Biology 49 Lophophore Chordata Arthropoda Echinodermata Onychophora Annelida 8:34 AM Mollusca Platyhelminthes Bryozoa Porifera Cnidaria Université d’Ottawa / University of Ottawa Trochophore Two main protostome groups Food particles Water current Lophotrochozoa Mouth – Lophophore or – Trochophore larval stage Anus Gut Figure 33-4a 33- Ecdysozoa Mouth Anus Cilia used in locomotion and feeding Figure 33-5 33Figure 33-4b 33- BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 51 8:34 AM BIO1130 Organismal Biology Page 17 Cambrian and Ordivician Animal architecture Symmetry and cephalization Tissues Embryology Body cavities Tube within a tube BIO1130 Organismal Biology 52 Université d’Ottawa / University of Ottawa 8:34 AM Animal architecture Symmetry and cephalization Assymetric _radia symmetry _______ _l_______ symmetry and cephalization bilateral Figure 26.3 Animal architecture Tissues diploblastic germ __________ layers – Ectoderm and endoderm triploblastic germ __________ layers – Ectoderm, mesoderm and endoderm BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 54 8:34 AM BIO1130 Organismal Biology Page 18 Cambrian and Ordivician Animal architecture Embryology - cleavage 4 cell embryo 8 cell embryo _______ spiral cleavage Radial cleavage BIO1130 Organismal Biology Figure 25.5a 55 Université d’Ottawa / University of Ottawa 8:34 AM Animal architecture Embryology - gastrulation Blastula Gastrula Ectoderm Endoderm Gut Blastopore BIO1130 Organismal Biology Figure 26.2 56 Université d’Ottawa / University of Ottawa 8:34 AM Ectoderm Animal architecture Embryology – coelom formation Mesoderm Endoderm Coelom Gut (Archenteron) Schizocoel BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa Enterocoel Figure 26.5b 57 8:34 AM BIO1130 Organismal Biology Page 19 Cambrian and Ordivician Animal architecture Body cavities _____________ Coelomate Pseudocoelomate BIO1130 Organismal Biology 58 Université d’Ottawa / University of Ottawa 8:34 AM Ectoderm Animal architecture Mesoderm Body cavities - Acoelomate Endoderm Coelom Epidermis Gut Internal organs Body wall Figure 26.4a BIO1130 Organismal Biology 59 Université d’Ottawa / University of Ottawa 8:34 AM Ectoderm Animal architecture Mesoderm Body cavities - Pseudoelomate Endoderm Coelom Epidermis Gut Pseudocoelom Body wall Internal organs BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa Figure 26.4b 60 8:34 AM BIO1130 Organismal Biology Page 20 Cambrian and Ordivician Ectoderm Animal architecture Mesoderm Body cavities - Coelomate Endoderm Coelom Epidermis Coelom Body wall Internal organs Mesentery Gut Peritoneum BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa Figure 26.4c 61 8:34 AM BIO1130 Organismal Biology Page 21 ...
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This note was uploaded on 09/09/2011 for the course BIO 1130 taught by Professor Fenwick during the Fall '08 term at University of Ottawa.

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