updated dec. 2005 created by c. ippolito november 2002 1 taxonomy unity and diversity chapter 5 page...
TRANSCRIPT
![Page 1: Updated Dec. 2005 Created by C. Ippolito November 2002 1 Taxonomy Unity and Diversity Chapter 5 page 89 -125](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649c995503460f949553ca/html5/thumbnails/1.jpg)
Updated Dec. 2005Created by C. Ippolito
November 20021
Taxonomy
Unity and DiversityChapter 5page 89 -125
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2Created by C. Ippolito
November 2002Updated Dec. 2005
Taxonomy
natural curiositynatural curiosity attempt to name the different organisms.
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3Created by C. Ippolito
November 2002Updated Dec. 2005
COMMON NAMES
•"local" names •natives of an area.
•confusion • scientists - global basis.
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4Created by C. Ippolito
November 2002Updated Dec. 2005
COMMON NAMES
• What is the name of this mammal?
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5Created by C. Ippolito
November 2002Updated Dec. 2005
Mountain Lion
•a.k.a. •puma•cougar•panther•Indian devil
•Need logical system.
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6Created by C. Ippolito
November 2002Updated Dec. 2005
systematic naming and classifying of organisms – To make identification and comparison easier.
TAXONOMY
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7Created by C. Ippolito
November 2002Updated Dec. 2005
based on:
1.1.habitathabitat - location where organism was found
2.2.basic structurebasic structure - similarity
Early Classification
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8Created by C. Ippolito
November 2002Updated Dec. 2005
Aristotle’s Classification Scheme
Two kingdomsTwo kingdoms– Plants –
stationary green things
– Animals - motile
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9Created by C. Ippolito
November 2002Updated Dec. 2005
Plant Kingdom
1.1. treestrees
2.2. shrubsshrubs
3.3. herbsherbs
- one wood stem- many wood stems- soft stems
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10Created by C. Ippolito
November 2002Updated Dec. 2005
Animal Kingdom
1.1. landland
2.2. waterwater
3.3. airair
- live on land- live in water- fly
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11Created by C. Ippolito
November 2002Updated Dec. 2005
Later Developments in Taxonomy
Immutability of SpeciesImmutability of Species – fixed number of living things
existed– all will be
foundidentifiednamed
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12Created by C. Ippolito
November 2002Updated Dec. 2005
• speciesspecies 1.similar individuals 2.common ancestor3.mate in nature 4.produce fertile offspring
John Ray (1700) - Species
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13Created by C. Ippolito
November 2002Updated Dec. 2005
Linneaus (1707-1778)
Swedish botanist– BinomialBinomial
NomenclatureNomenclatureTwo name naming
– Genus namegeneral type
– Species namespecific kind
– Latin names
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14Created by C. Ippolito
November 2002Updated Dec. 2005
Why Latin?
1. language of education2. basis of most languages3. dead language
meanings do not change
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15Created by C. Ippolito
November 2002Updated Dec. 2005
Binomial Nomenclature
Genus: FelisFelis (cat)– species: tigristigris (tiger)– species: familiarisfamiliaris (of the family)– species: domesticusdomesticus (of the house)– species: leoleo (lion)– species: concolorconcolor (puma)
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16Created by C. Ippolito
November 2002Updated Dec. 2005
Modern System
TAXON - (pl. taxa) – group of related organisms
– hierarchy diversity to unity.
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17Created by C. Ippolito
November 2002Updated Dec. 2005
Modern System
Kingdom – largest taxon – most different
Species – smallest taxon – most similarity
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18Created by C. Ippolito
November 2002Updated Dec. 2005
Hierarchy of Taxa
Kingdom Phylum (pl. phyla)
ClassOrder
FamilyGenus (pl. genera)species
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19Created by C. Ippolito
November 2002Updated Dec. 2005
Kingdom Systems
classification changes for: – new discoveries– use or purpose– viewpoint
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20Created by C. Ippolito
November 2002Updated Dec. 2005
Kingdom Systems
TwoTwo KingdomKingdom: Plant and Animal ThreeThree KingdomKingdom: Plant, Animal and Protist FourFour KingdomKingdom: Plant, Animal, Protist and
Monera FiveFive KingdomKingdom: Plant, Animal, Protist,
Monera and Fungi SixSix KingdomKingdom: Plant, Animal, Protist, Fungi,
Eubacteria, Archaebacteria,
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21Created by C. Ippolito
November 2002Updated Dec. 2005
Fungi
Planta
Animalia
Protists
Eubacteria
Archaebacteriamethanogens
Six KingdomsSix Kingdoms
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22Created by C. Ippolito
November 2002Updated Dec. 2005
Plant Kingdom
1. nutrition - autotrophicautotrophic2. cells - multicellularmulticellular 3. cell type - eukaryoticeukaryotic4. locomotion - nonnon motilemotile5. cell walls - cellulosecellulose
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23Created by C. Ippolito
November 2002Updated Dec. 2005
Animal Kingdom
1. nutrition - heterotrophicheterotrophic2. cells - multicellularmulticellular 3. cell type - eukaryoticeukaryotic4. locomotion - motilemotile5. cell walls – not presentnot present
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24Created by C. Ippolito
November 2002Updated Dec. 2005
Protist Kingdom
1. nutrition – autotrophic autotrophic and heterotrophicheterotrophic
2. cells - unicellularunicellular 3. cell type - eukaryoticeukaryotic4. locomotion – most motile motile5. cell walls – cellulose cellulose or not present not present
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25Created by C. Ippolito
November 2002Updated Dec. 2005
Fungi Kingdom
1. nutrition – saprophyticsaprophytic(absorbs nutrients from “dead things”)
2. cells - multicellularmulticellular 3. cell type - eukaryoticeukaryotic4. locomotion - nonnon motilemotile5. cell walls - chitinchitin
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26Created by C. Ippolito
November 2002Updated Dec. 2005
Eubacteria Kingdom
1. nutrition - autotrophic autotrophic and heterotrophicheterotrophic
2. cells - unicellularunicellular 3. cell type - prokaryoticprokaryotic4. locomotion - motilemotile5. cell walls - peptidoglycanpeptidoglycan
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27Created by C. Ippolito
November 2002Updated Dec. 2005
Archaebacteria Kingdom
1. nutrition - autotrophic autotrophic and heterotrophicheterotrophic
2. cells - unicellularunicellular 3. cell type - prokaryoticprokaryotic4. locomotion - motilemotile5. cell walls – not peptidoglycanpeptidoglycan
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28Created by C. Ippolito
November 2002Updated Dec. 2005
Archaebacteria
• Simplest and most primitive• ProkaryoticProkaryotic - no membrane
bound organelles• methanogens of swamps• thermophiles of ocean vents
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29Created by C. Ippolito
November 2002Updated Dec. 2005
Eubacteria
1.1. SchizophytaSchizophyta (heterotrophs) -bacteria
2.2. CyanophytaCyanophyta (autotrophs) cyanobacteria
3.3. VirusesViruses ?? - obligate intercellular parasites
4.4. PrionsPrions ?? – naked proteins – “Mad Cow” disease
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30Created by C. Ippolito
November 2002Updated Dec. 2005
Schizophyta - bacteria
Basic shapes
1.1.bacillusbacillus - rods
2.2.coccuscoccus - round
3.3.spirillusspirillus - spiral
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31Created by C. Ippolito
November 2002Updated Dec. 2005
Viruses
“phagesphages” - Greek = to eat.– proteinprotein covercover – nucleic acids ( DNADNA or RNARNA))
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32Created by C. Ippolito
November 2002Updated Dec. 2005
Types of Viruses
1.1. BacteriophagesBacteriophages – attack bacterial cells
2.2. ZoophagesZoophages – attack animal cells
3.3. PhytophagesPhytophages – attack plant cells
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33Created by C. Ippolito
November 2002Updated Dec. 2005
Viral Life
Cycle
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Updated Dec. 2005Created by C. Ippolito
November 200234
Protists
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35Created by C. Ippolito
November 2002Updated Dec. 2005
Protist Groups
• Two types:
1.1.ProtozoaProtozoa - animal-like
2.2.AlgaeAlgae - plant-like
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36Created by C. Ippolito
November 2002Updated Dec. 2005
Protozoa
CiliataCiliata – cilia (i.e. paramecium)
SarcodinaSarcodina – pseudopodia (i.e.
ameba) ZoomastigophoraZoomastigophora
– flagella (i.e. euglena) SporozoaSporozoa
– spores (i.e. Plasmodium – causes malaria)
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37Created by C. Ippolito
November 2002Updated Dec. 2005
Algae
• ChlorophytaChlorophyta (green plant)• green
• RhodophytaRhodophyta (red plant)• red pigments
• PhaeophytaPhaeophyta • brown pigments
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38Created by C. Ippolito
November 2002Updated Dec. 2005
Algae
• ChrysophytaChrysophyta (crystal plant)• silica shell – diatoms• shells of dead cells
form diatomaceous earth – grit of toothpaste
• PyrophytaPyrophyta (fire plant)• fluoresce• responsible for St. Elmo’s
Fire
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39Created by C. Ippolito
November 2002Updated Dec. 2005
Plant Kingdom
Phyla of plant kingdom are called divisions.– Bryophyta – mosses and liverworts– Pterophyta – ferns– Cycadphyta – cycads– Ginkophyta – ginko– Coniferophyta – conifers– Anthophyta – flowering plants
Alternation of Generations– Gametophyte (haploid - n) – produces
gametes– Sporophyte (diploid - 2n) – makes spores to
reproduce
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40Created by C. Ippolito
November 2002Updated Dec. 2005
Division: Bryophyta
Mosses, Liverworts– No
vascular tissuerootsstemsleaves
– Gametophyte dominant
– Sperm swims to egg– Sporophyte
dependent on gametophyte
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41Created by C. Ippolito
November 2002Updated Dec. 2005
Division: Pterophyta
Ferns– Rhizoid
root like structure– Fronds
finely divided leaves
– Gametophyte – rarely seen
– Sporophyte spore sacs (sori)
under leaves
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42Created by C. Ippolito
November 2002Updated Dec. 2005
Division: Cycadophyta
Gymnosperms - naked seeds Cone protects seeds Stems underground
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43Created by C. Ippolito
November 2002Updated Dec. 2005
Division: Ginkophyta
Gymnosperm– fan-shaped leaf– was thought to be
“extinct” One species found in
China in 1920’s
– tolerant of pollutants often planted in cities
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44Created by C. Ippolito
November 2002Updated Dec. 2005
Division: Coniferophyta
Gymnosperm Cone bearing Needles Many evergreen
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45Created by C. Ippolito
November 2002Updated Dec. 2005
Division: Anthophyta
Flowering plants Angiosperms -
(hidden seed)– Vascular tissue– Stems, roots, leaves– Sporophyte
dominant– Gametophyte
dependent on sporophyte
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46Created by C. Ippolito
November 2002Updated Dec. 2005
Class: Monocotyledonae
Grass, Orchid, Bamboo Monocot
– characteristics FlowerFlower – parts in
multiples of 3 LeavesLeaves – have
parallel veins SeedSeed – single
cotyledon (food storage for embryo plant)
StemsStems – have scattered vascular tissue – “monkey face”
– XylemXylem – water up – “mouth”
– PhloemPhloem – food down – “eyes”
RootsRoots - fibrous
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47Created by C. Ippolito
November 2002Updated Dec. 2005
Class: Dicotyledonae
Apple, Sunflower Dicot
– characteristics FlowerFlower – parts in
multiples of 4 or 5 LeavesLeaves – netted veins SeedSeed – two
cotyledons StemsStems –vascular
tissue in rings around periphery
– XylemXylem – inside carries water up
– PhloemPhloem – outside carries food down
RootRoot – Tap root
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Updated Dec. 2005Created by C. Ippolito
November 200248
Kingdom: Animal
Phyla:Porifera
Coelenterata (Cnidaria)Platyheminthes
NematodaAnnelida
ArthropodaMollusca
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49Created by C. Ippolito
November 2002Updated Dec. 2005
PoriferaPorifera( L: hole bearer)- sponges
most sessile – (stationary) most marine – (salt water) asymmetrical body fibrous skeleton made of
“spongin” filter feeders
– numerous holes – draw water and plankton in
– Osculum – opening at top releases water
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50Created by C. Ippolito
November 2002Updated Dec. 2005
Coelenterata (Cnidaria)Coelenterata (Cnidaria) (L: hollow gut) hydra, jellyfish
mouth with tentaclestentacles
twotwo wayway digestivedigestive cavity
two cell layers– endodermendoderm – inner
layer– ectodermectoderm – outer
layer radialradial symmetrysymmetry
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51Created by C. Ippolito
November 2002Updated Dec. 2005
PlatyhelminthesPlatyhelminthes - (L: flat worms) Planaria, tapeworms, flukes
bilateral symmetry three layers of cells
– endoderm-endoderm- inner layer– mesodermmesoderm – middle layer– ectodermectoderm – outer layer
two way digestion– Food enters and wastes
leave from same opening free living or parasitic
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52Created by C. Ippolito
November 2002Updated Dec. 2005
NematodaNematoda – (round worms) Trichinella, Ascaris
round body bilateral symmetry oneone wayway digestiondigestion
– mouthmouth – receives food– anusanus – releases wastes– tubetube inin a tubetube organization
free living – important decomposers
parasitic– filarial worms– cause elephantiasis– cause schistosomiasis
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53Created by C. Ippolito
November 2002Updated Dec. 2005
AnnelidaAnnelida (L: ring)- segmented worms. leech, earthworm
segmented bodies bilateral symmetry one way digestion
– mouthmouth – receives food
– anusanus – releases wastes
– tubetube inin a tubetube organization
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54Created by C. Ippolito
November 2002Updated Dec. 2005
ArthropodaArthropoda (L: jointed legs) insects, spiders, lobsters
segmented body exoskeleton jointed appendages
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55Created by C. Ippolito
November 2002Updated Dec. 2005
Class: Crustacea – crabs, lobsters, pill bugs
Two body regions– cephalothorax –
“head and chest”– abdomen
Two antennae
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56Created by C. Ippolito
November 2002Updated Dec. 2005
Class: Arachnoidea
Two body regions– Cephalothorax– Abdomen
Four pairs of legs
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57Created by C. Ippolito
November 2002Updated Dec. 2005
Class: Chilopoda
Multiple segments
One pair of legs per segment
carnivorous
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58Created by C. Ippolito
November 2002Updated Dec. 2005
Class: Diplopoda
multiple segments
two pairs of legs per segment
herbivorous & decomposers
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59Created by C. Ippolito
November 2002Updated Dec. 2005
Class: Insecta
three body regions– Head– Thorax– Abdomen
three pairs of legs two pairs of wings
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60Created by C. Ippolito
November 2002Updated Dec. 2005
EchinodermataEchinodermata (L: spiny skinned) starfish, sea cucumbers
radial symmetry internalinternal calcium
skeletonskeleton– plates of calcium
under skin– thought to be
ancestor of chordates water vascular
system for movement
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61Created by C. Ippolito
November 2002Updated Dec. 2005
ChordataChordata (L: cord) fish, mammals, birds
dorsaldorsal hollow nervenerve cordcord gillgill slitsslits during some part
of their development most are vertebrates
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62Created by C. Ippolito
November 2002Updated Dec. 2005
Class: Agnatha
• (L: jawless fishes) hagfish, lamprey
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63Created by C. Ippolito
November 2002Updated Dec. 2005
Class: PiscesOrder: Chondrichthyes
•(Gr: cartilage fish) sharks, manta rays
white whalewhite whale
hammer headhammer head
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64Created by C. Ippolito
November 2002Updated Dec. 2005
Class: PiscesOrder: Osteichthyes
• (Gr: bony fish) bass, trout, barracuda, flounder
striped bass
barracuda
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65Created by C. Ippolito
November 2002Updated Dec. 2005
Class:Amphibia
• (L & Gr: both lives) salamanders, newts, frogs, toads• moist skin
• larva aquatic • adult lungs
but breathes through skin
• reproduce in water
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66Created by C. Ippolito
November 2002Updated Dec. 2005
Class Reptilia
•(L: to creep) Snakes, lizards, turtle, crocodile
• dry scaly skin• land dwelling• breathe with lungs• amniotic egg with
leathery shell
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67Created by C. Ippolito
November 2002Updated Dec. 2005
cobracobra
crocodilecrocodile
iguanaiguana
box turtlebox turtle
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68Created by C. Ippolito
November 2002Updated Dec. 2005
Class: Aves (L: birds) Avocet, barn owl, chaffinch
feathers Homeothermic
– Maintain constant body temperature amniotic egg with calcium shell
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69Created by C. Ippolito
November 2002Updated Dec. 2005
avocetavocet barn owlbarn owl
chaffinchchaffinch
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70Created by C. Ippolito
November 2002Updated Dec. 2005
Class: Mammalia (L: of the breast)
bear live young– develop with in uterus (womb) of female
young fed milk bodies covered with hair Homeothermic -warm blooded
– Maintain constant internal body temperature
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71Created by C. Ippolito
November 2002Updated Dec. 2005
Order Monotremata
•(Gr: one hole) Spiny anteater, platypus
•lay eggs•feed young milk
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72Created by C. Ippolito
November 2002Updated Dec. 2005
spiny spiny anteateranteater
platypusplatypus
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73Created by C. Ippolito
November 2002Updated Dec. 2005
Order Protheria
•(Gr: early womb) kangaroo, opossum
• live youngyoung incompletelyincompletely developeddeveloped
• finish development in pouch (marsupiummarsupium)
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74Created by C. Ippolito
November 2002Updated Dec. 2005
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75Created by C. Ippolito
November 2002Updated Dec. 2005
Order Eutheria
•(Gr: true womb) Cats, dogs,
• bears, monkey, man•Bear live young from womb
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76Created by C. Ippolito
November 2002Updated Dec. 2005