Classification of Living Things

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Classification of Living Things

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Classification of Living Things

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Classification of Living Things

Classification of Living Things

Classification of Living Things

Classification of Living Things

Classification of Living Things

Classification of Living Things

Classification of Living Things

Classification of Living Things

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This Powerpoint is a compilation of presentations found on the Internet. Unfortunately, the authors did not include their names on their work.

This Powerpoint is a compilation of presentations found on the Internet. Unfortunately, the authors did not include their names on their work.

Classification of Living Things

Presentation transcript:

Classification of Living Things

Why do we classify things? Supermarket aisles Libraries Classes Teams/sports Members of a family Roads Cities Money

What is classification? Classification: putting things into orderly groups based on similar characteristics Taxonomy: the science of describing, naming, and classifying organisms

Binomial Nomenclature Developed by Carolus Linnaeus Swedish Biologist 1700’s Two-name system Genus and species named using Latin or Greek words

Rules used to write scientific names Homo sapiens An organism’s genus is always written first; the organism’s species is always written second The genus is Capitalized; the species is written in lower case Scientific names of organisms are always italicized or underlined

The modern system of classification has 8 levels: Order Family Genus Species Domain Kingdom Phylum Class

Helpful way to remember the 8 levels Dumb Kids Prefer Candy Over Fancy Green Salad Or…make up your own… D K P C O F G S

Using the Classification System Field guides help identify organisms. -they highlight differences between similar organisms (like trees) Taxonomic Key (Dichotomous Key) -paired statements that describe the physical characteristics of different organisms

What steps would you use to identify an apple? Taxonomic Key 1a Fruits occur singly ................................................. Go to 3 1b Fruits occur in clusters of two or more ................ Go to 2 2a Fruits are round ................................................... Grapes 2b Fruits are elongate ............................................... Bananas 3a Thick skin that separates easily from flesh .........Oranges 3b Thin skin that adheres to flesh .............................. Go to 4 4a More than one seed per fruit ............................ Apples 4b One seed per fruit ............................................ Go to 5 5a Skin covered with fuzz.................... Peaches 5b Skin smooth, without fuzz........................... Plums What steps would you use to identify an apple?