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Classification of Life
Chapter 15
Classification
Taxonomy- science of classifying living organisms
Aristotle
Greek philosopherDivided life into two parts:
Carolus Linnaeus (1750’s)
Binomial Nomenclature – two word system– Two names– Genus – category
containing similar species.
– species– (scientific name)
Man Dog GrasshopperKingdom Animalia Animalia AnimaliaPhylum Chordata Chordata ArthropodaClass Mammalia Mammalia InsectaOrder Primates Carnivora OrthopteraFamily Hominidae Canidae LocustidaeGenus Homo Canis SchistocercaSpecies sapiens familiaris americana
Dichotomous Keys
Used to identify and name species
Phylogeny
- evolutionary history of a species- anatomy- biochemistry- six kingdoms- geologic time scale- 4 billion years of life
Six Kingdoms of Life
notes
3 Domains of Life
Eubacteria
- prokaryotes- no nucleus or organelles- unicellular- often heterotrophs- common bacteria- strong capsule - blue-green algae
Archaebacteria
Protist
Fungus
Plants
Animals