Classification. Biodiversity Definition: The variety of species living in an area The _____________...
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Classification
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Biodiversity• Definition: The variety of species living in an area
• The _____________ biodiversity there is in an ecosystem, the ___________ that ecosystem is.
moremore
healthierhealthier
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WHY, oh WHY do we CLASSIFY??
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HOW do we Classify?• Anatomy
• Cytology
• BioChemistry
• Embryology
?
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Language: LATIN
“Hey mate want to grab a joint, share a fag and wipe up with a nappy?”
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Levels of Classification
• Did• King• Phillip• Come• Over • For • Green• Soup
• Domain• Kingdom• Phylum• Class• Order• Family• Genus• Species
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How does THIS represent the
Levels of Classification?
Animalia
Chordata
Mammalia
Primate
Hominidae
Homo
sapiens
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Kingdom
Phylum
Class
Order
FamilyGenus
Species
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Scientific Names: Binomial Nomenclature
Cat
Gatto
Chat
Felis domesticus or
Felis domesticus
猫K
atze
γάτ
α
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Honeoye Falls-Lima ?
◦cougars
◦mountain lion
◦panther
◦puma
◦catamount Felis concolor
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How to Write a Scientific name
• Use the GENUS and SPECIES names.• Genus is first, species is second.• Genus is capitalized (first letter only), species is
all lower case.• The entire name is either underlined or italicized
(when handwritten, always underline).
• Musca domestica • Ursus horribilis• Canus lupus
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What the heck is a Cladogram?
A cladogram is a tree-like diagram showing evolutionary relationships.
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Cladograms, continued…
• Cladograms also show which groups are more related to each other than to other groups:
• Example: snakes are more closely related to birds than they are to mammals.
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Holy Cow!! Can you imagine doing all
this?
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Goo
d R
egen
ts
Que
stio
n fr
om
June
’05
Exa
m
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How it all works….
3 Domains:
BacteriaArchea Eukarya
Kin
gdom
sK
ingd
oms
Moneran: Moneran:
• Prokaryotic
•Includes all bacteria except those that live in extreme conditions.
Archaebacteria:Archaebacteria:
• Live in extreme conditions
• Most primitive
• Prokaryotic
ProtistaProtista
FungiFungi
AnimaliaAnimalia
PlantaePlantae
(Info on next slide)
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The Eukarya Domain
Protista Fungi Animalia Plantae
•Unicellular and colonial•Both animal-like and plant-like•Auto- and heterotrophic
•Multicelluar (EXCEPT yeast)•Heterotrophic•Non-motile•Sessile
•Multicellular•Heterotrophic•Motile
•Multicellular•Autotrophic
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Dichotomous Keys
• A tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item.
• For each item, there are two choices…
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Example of a Key:
1.A. Has fur……………………..go to 21.B. No fur………………………go to 3
2.A. Has wings…………………BAT2.B. No wings, tail……………..go to 7
3.A. Has scales…………………go to 43.B. No scales…………………..go to 5