Classification of Living Things

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Presentation transcript:

Classification of Living Things Taxonomy Classification of Living Things

TAXONOMY- the science of naming and 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 Nomenclature 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 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 System Domain Kingdom Phylum Class Order Family Genus species {SCIENTIFIC NAME}

5 or 6 Kingdoms? 5 Kingdom System: Monera (Bacteria), Protista, Fungi, Plantae, Animalia *****6 Kingdom System: Archaebacteria, Eubacteria, Protista, Fungi, Plantae, Animalia

Species 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!

Write on the back of notes Words to Know Write 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 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