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18 Cards in this Set
- Front
- Back
Classification |
The process of grouping things based on their similarities. |
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Taxonomy |
The scientific study of how organisms are classified. |
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Carolus Linnaeus |
Creator of a system to name organisms. |
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Binomial nomenclature |
a unique two-part naming system based on the genus and species of an organism. |
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Genus |
a classification grouping that contains similar, closely related organisms. |
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Species |
a group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce. |
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How is a scientific name written |
Both words are italicized; the first letter of the first word is capitalized and comes from its genus; the second word is all lowercase and comes from the species. For example: the scientific name for humans is: Homosapiens (italicized) |
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The broadest level of the classification system |
Domain |
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Eukarya, Archaea and Bacteria are |
the three domains |
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Levels of classification in order from broadest category to most specific |
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species |
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Tools for classifying organisms |
Dichotomous key, taxonomic key, field guide |
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Six kingdoms |
Archaebacteria, Eubacteria, Plant, Protist, Fungi, Animal |
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Organisms are placed into domains and kingdoms based on these characteristics |
cell type, ability to make food, number of cells in body |
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Organisms found in hot springs, very salty water and intestines of cows come from this kingdom |
Archaebacteria |
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The process of change over time |
Evolution |
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A diagram that shows probable evolutionary relationships among organisms and the order in which specific characteristics may have evolved. |
Branching tree diagram |
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A trait such as fur, shape of teeth, or claws that the common ancestor of a group had passed on to its descendants |
Shared derived characteristics |
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The process where unrelated organisms evolve characteristics that are similar. For example, birds and insects both use wings to fly, but are not closely related. |
Convergent evolution |