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Six Kingdoms
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organism any living thing
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cell The smallest unit of an organism that can carry out the functions of life
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homeostasis an organism’s ability to keep the proper conditions inside no matter what is going on outside the organism
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Cells and Characteristics of Life (5)
1. made of cells 2. use energy 3. grow and develop 4. have the ability to reproduce 5. respond to stimuli (changes in the environment ) Emphasize word parts here: phospho= phosphate head; lipid= fatty acid tail bi= 2
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3 things that all organisms need
Food Water A place to live
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classification grouping organisms or objects based on similarities and differences between them
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Carolus Linnaeus a Swedish naturalist that developed a system to classify organisms
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kingdom the highest level of organization
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binomial nomenclature
a naming system where every organism is given a two-part name (scientific name)
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scientific name the name given to an organism based
on the genus to which it belongs and its species name
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How do you write the scientific name for an organism?
The genus name comes first and is always capitalized The species name comes second and always starts with a lower case letter If typed, use italics; if handwritten, underline it Felis domesticus Felis domesticus Canis familiaris Canis familiaris
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Genus and species names
Where does the scientific name of a creature come from?
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genus A group of similar species
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species a group of similar organisms that can breed to produce fertile offspring; the lowest level of classification
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dichotomous key a tool to classify organisms by choosing their characteristics from a series of paired statements
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Dichotomous Keys The identification of biological organisms can be greatly simplified using tools such as dichotomous keys. A dichotomous key is an organized set of couplets (paired statements) of characteristics of organisms.
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Dichotomous Keys You simply compare the characteristics of an unknown organism against an appropriate dichotomous key. These keys will begin with general characteristics and lead to couplets (paired statements) indicating progressively specific characteristics. If the organism falls into one category, you go to the next indicated couplet. By following the key and making the correct choices, you should be able to identify your specimen to the indicated taxonomic level.
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Dichotomous Keys 2 1 2 3 5 4
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Dichotomous Keys 1a.Bean is round Garbanzo bean
1b.Bean is elliptical or oblong Go to 2 2a.Bean is white White northern 2b.Bean has dark pigments Go to 3 3a.Bean is evenly pigmented Go to 4 3b.Bean pigmentation is mottled Pinto bean 4a.Bean is black Black bean 4b.Bean is reddish-brown Kidney bean
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What saying can help you remember the order of the levels in a classification chart?
King Phillip Came Over For Good Spaghetti
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What is the order of the levels in a classification chart?
Kingdom Phylum Class Order Family Genus Species
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unicellular made up of only one cell
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multicellular made up of two or more cells
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prokaryote a unicellular organism whose cell does not contain a nucleus
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eukaryotes a living thing whose cells contain a nucleus
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autotroph an organism that is able to make their own food
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heterotroph an organism that gets its food by eating other organisms
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bacteria unicellular, prokaryotic organisms
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protists Eukaryotic organisms that are divided into 3 groups:
plant-like, animal-like, and fungus-like
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fungi most are multicellular, one kind is unicellular, all are eukaryotic, and heterotrophic
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plants multicellular, eukaryotic, and autotrophic organisms
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animals multicellular, eukaryotic, and heterotrophic organisms
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