taxonomy classification of living things. taxonomy- the science of naming and classifying organisms...
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TaxonomyTaxonomy
Classification of Living Things
TAXONOMY- the science of naming TAXONOMY- the science of naming and classifying organismsand classifying organisms
• Aristotle: grouped plants and animals based on similarities
• Greeks & Romans-major groups called “genus” (means group)
• Carl Linnaeus-(1707-1778) - Sweden--gave organisms a 2 word name...
Binomial Binomial NomenclatureNomenclature
• Means “2 word naming system”
• Genus (always capitalized)
• species (lower case)
• either underlined or italics (only if printed on printer)
• this is considered the Scientific Name!
Homo sapien
Universal LanguageUniversal Language
• Provides a standard for communication among Biologists, regardless of their native language
• 2 different organisms cannot have the same scientific name
• organisms can share one part of their scientific name w/another organism.
Hierarchical SystemHierarchical System• Domain• Kingdom• Phylum• Class• Order• Family• Genus • species
{SCIENTIFIC NAME}
5 or 6 Kingdoms?5 or 6 Kingdoms?
• 5 Kingdom System: Monera (Bacteria), Protista, Fungi, Plantae, Animalia
*****6 Kingdom System: Archaebacteria, Eubacteria, Protista, Fungi, Plantae, Animalia
SpeciesSpecies• Generally defined as a group of
organisms that can breed to produce fertile offspring
• All dogs are one species
• Horses and donkeys are different species because when they breed, their offspring (mules) are sterile!
Words to KnowWrite on the back of notes
• prokaryote (ic)- no nucleus, no cell organelles
•eukaryote (ic)-nucleus, organelles
•autotroph (ic)-produces its own nutrients
•heterotroph (ic)-obtains nutrients from other organisms
•Unicellular- one cell
•Multicellular- many cells
DICHOTOMOUS KEYSDICHOTOMOUS KEYS
• Identification Key • Contains pairs of contrasting
descriptions (A or B)• The correct description either
leads to another pair of descriptions or identifies the object.
• Open your book to page 462, Read the directions and Answer the questions
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