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Diversity of Life

Diversity of Life. Lab 1. Estimated numbers of described species, and possible global total. UNEP (1995) Global Biodiversity Assessment (henceforth ` Global Biodiversity Assessment '. Taxonomy Mnemonic. Domain Do Kingdom Keep Phylum Ponds -Subphylum Super Class Clean

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Diversity of Life

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  1. Diversity of Life Lab 1

  2. Estimated numbers of described species, and possible global total. UNEP (1995) Global Biodiversity Assessment (henceforth `Global Biodiversity Assessment'

  3. Taxonomy Mnemonic Domain Do Kingdom Keep Phylum Ponds -Subphylum Super Class Clean Order Or Family Fish Genus Get Species Sick

  4. The Three Domains

  5. Bigelow.org

  6. Types of Cells • Eukaryotic Cell: • Prokaryotic Cell:

  7. Domain Archaea and Bacteria • Single-celled • No organelles • Circular DNA • Small ribosomes http://coursev4files.cod.edu/fancher/ProkaryoticCellLabeled.jpg

  8. Domain Bacteria

  9. Domain Archaea

  10. Domain Eukarya • Single-celled or multicellular organisms • DNA is linear and found within a nucleus • Most have additional membrane-bound organelles • Large ribosomes

  11. Kingdom Protista

  12. Brown Algae and Diatoms: Chlorophylls a and c and fucoxanthin

  13. Red Algae: chlorophylls a & d, and the pigment phycoerythrin

  14. Using a Dichotomous Key 1a. Pointed ears………...go to 2 1b. Rounded ears……….go to 4 2a. Yellow fur……………Rabbit 2b. Not yellow fur……….go to 3 3a. Stands on 2 legs........Piglet 3b. Stands on 4 legs…….Eeyore 4a. Has stripes…………….Tigger 4b. Does not have stripes…Winnie the Pooh

  15. Now in the plant kingdom: Green Algae (shared characteristics: chlorophylls a & b, cell wall with cellulose, and similar gametes and life cycle)

  16. Kingdom Plantae • Bryophyta: Mosses, hornworts, liverworts

  17. Kingdom Plantae • Pteridopsida: Ferns

  18. Seed Plants: Spermatophyta; Gymnosperms

  19. Seed Plants: Spermatophyta: Angiosperms

  20. Hypha Mycelium Kingdom Fungi

  21. Kingdom Animalia

  22. Phylum Porifera (sponges)

  23. Phylum Cnidaria

  24. Phylum Platyhelminthes

  25. Phylum Annelida Pearson Education, Inc.

  26. Phylum Mollusca

  27. Phylum Nematoda • Figure 1.Diversity of nematode morphology and lifestyle.(a) Adult Ascaris worm, an intestinal parasite of vertebrates. • (b) Culture of Caenorhabditis, a free-living nematode. Photo by A. L. Diogo • (c) female root-knot nematode (plant parasite), Meloidogyne arenaria. Photo by J. D. Eisenback • (d) Anterior end of hookworm Ancylostoma. Photo by J. D. Eisenback • (e) Posterior end (bursa) of hookworm Ancylostoma. • (f) anterior of Acrobeles sp., a bacterial feeder. Photo by P. Vieira • (g) Trichinella larvae encysted in vertebrate muscle cells. Photo by J. D. Eisenback • (h) Microfilaria (larval stage) of filarial worm Wuchereria in blood smear. • (i) Plant parasite Pratylenchus feeding inside cortical cell of root. Photo by U. Zunke

  28. Phylum Arthropoda

  29. Phylum Echinodermata

  30. VertebratesPhylum ChordataSubphylum Vertebrata

  31. What is our taxonomy? Domain Eukarya Kingdom Animalia Phylum Chordata -Subphylum Vertebrata Class Mammalia Order Primate Family Hominidae Genus Homo Species sapiens

  32. Quiz 1 Study Guide • Review the definition of a species • Know taxonomic levels and classification of a human • Know the difference between a prokaryotic and eukaryotic cell • Review the main characteristics for each group of organisms (see separate document) • Read Lab 2

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