BIO1130 Cambrian and Ordivician periods

BIO1130 Cambrian and Ordivician periods - Cambrian and...

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Page 1 Cambrian and Ordivician BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 1 Cambrian and Ordovician periods Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 2 Figure 27-8 Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 3 Burgess shales – Yoho National park Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 4 The Cambrian explosion Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 5 Burgess shales and its unusual invertebrates Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 6 Burgess shales and its unusual invertebrates Video 1 , 2 ,
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Page 2 Cambrian and Ordivician BIO1130 Organismal Biology Porifera Cnidaria Bryozoa Platyhelminthes Molusca Annelida Onychophora Arthropoda Echinodermata Chordata Lophophore Trochophore 1:52 PM 7 Figure 26-6 Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 8 Animal architecture Tissues Symmetry and cephalization Embryology Body cavities Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 9 Animal architecture: Tissues No tissues _________ germ layers Ectoderm and endoderm _________ germ layers Ectoderm, mesoderm and endoderm 1:52 PM 10 Figure 26-6 No tissues Diploblastic Triploblastic Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 11 Figure 26.8 Colonial choanoflagellates Collar Spongocoel Osculum Choanoderm Pinacoderm Amoebocytes Spicules Pore Flagellum Cell body Choanocyte Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 12 Sponge sex Choanoctyes become sperm _________ (sponge stem cells) form egg http:/ www.waterexplorer.com/il_cool102.htm Figure 26.7
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Page 3 Cambrian and Ordivician BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 13 Colonial choanocyte ancestor 1:52 PM 14 Animal architecture Symmetry and cephalization Assymetric Radial symmetry Bilateral symmetry and ___________ Figure 26.3 Porifera Cnidaria Bryozoa Platyhelminthes Molusca Annelida Onychophora Arthropoda Echinodermata Chordata 1:52 PM 15 Figure 26-6 Radial symmetry Bilateral symmetry No symmetry Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 16 Corals ? Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 17 Coral reefs Polyp Skelton Figure 26.13 Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog 18 Cnidocytes (Cnidaria) Figure 26.10 Cnidocil Nematocyst Barbs
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Page 4 Cambrian and Ordivician BIO1130 Organismal Biology Université d’Ottawa / University of Ottawa 1:52 PM BIO1130 Organismal Biolog
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This note was uploaded on 01/08/2012 for the course SCIENCE BIO1130 taught by Professor Fenwick during the Fall '11 term at University of Ottawa.

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BIO1130 Cambrian and Ordivician periods - Cambrian and...

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