CLASSIFICATION Organization of things/organisms into related groups based on similarities.
Classification Notes. Scientists classify organisms based upon similarities.
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Transcript of Classification Notes. Scientists classify organisms based upon similarities.
Classification NotesClassification Notes
Scientists classify organisms based upon similarities.
Classification changes as scientists learn more information about a species and realize that it is more genetically similar to another species.
One of the original classification systems consisted of two groups: plants and animals.
Animals were grouped based upon where they lived: land, air or water.
Plants were grouped based on size. Later, scientists grouped them based
upon structure and physical characteristics.
Taxonomy - The science of grouping and naming species.
Species are given two word Latin names. This two word naming system is called
binomial nomenclature. (bi=two, nomen = name)
The first word is the genus (group) name and the second is the species name.
The first word is always capitalized and the second is always lower case and it is always typed in italics. Ex. Homo sapiens.
Organisms are classified into a hierarchical system (a system with many levels).
There are 8 levels:DomainKingdomPhylumClassOrder Family GenusSpecies
Organisms are classified into a hierarchical system (a system with many levels).
There are 8 levels:DidKingPhilipComeOver For GoodSpaghetti
DomainKingdomPhylumClassOrderFamilyGenusSpecies
Until recently, kingdoms were the highest level of classification. There were 5 kingdoms: Animalia, Plantae, Fungi, Protista, and Monera.
Scientists discovered a new type of bacteria (monera) that was so different that bacteria needed two different groups: Eubacteria and Archaebacteria.
There are now 6 kingdoms:Animalia, Plantae, Fungi, Protista, Eubacteria
and Archaebacteria.
Major characteristics of the Animal kingdom:
• Eukaryotic Cells• Multi-Cellular• Heterotrophs
Classification of a HUMANS:
• Domain: Eukarya• Kingdom: Animalia • Phylum: Chordata• Class: Mammalia • Order: Primates • Family: Hominidae (Tribe:
Hominini) • Genus: Homo • Species: sapien
Classification of Orangutans:
• Kingdom: Animalia • Phylum: Chordata • Class: Mammalia • Order: Primates• Family: Hominidae (Subfamily: Ponginae)• Genus: Pongo• Species: borneo
Archaebacteria and Eubacteria have such different cells, that scientists divided the kingdoms up even further into 3 domains:
Archaea (Archaebacteria) Bacteria (Eubacteria) Eukarya (Animalia, Plantae, Fungi, and
Protista)
Dichotomous Keys
• Used to identify organisms based on characteristics
• Halibut Video (for Fish Sorting activity)