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A dichotomous key is a way of identifying specimens based on contrasting statements, usually about physical characteristics. By drawing a series of contrasts, you are able to narrow down the specimen until you can correctly identify it. Dichotomous keys are often used in the sciences, such as biology and geology. To make your own dichotomous key, first
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A dichotomous key is a way of identifying specimens based on contrasting statements, usually about physical characteristics. By drawing a series of contrasts, you are able to narrow down the specimen until you can correctly identify it. Dichotomous keys are often used in the sciences, such as biology and geology. To make your own dichotomous key, first select the characteristics you can use to contrast your specimens, then formulate these as a series of statements or questions you can use to narrow them down.
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[[Category:Biology]]
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[[Category:Geology]]
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==Steps==
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===Analyzing Your Specimens===
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#List the characteristics of your specimens. Start by considering the specimens you are trying to identify and insert into a dichotomous key. Note characteristics that define the things you are looking at, and start listing them out.<ref>http://ww2.mdsg.umd.edu/interactive_lessons/key/student1.htm</ref>[[Image:Make a
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Dichotomous Key Step 1.jpg|center]]
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#*If you are trying to create a dichotomous key for a series of animals, you might see that some have feathers, some swim, some walk on legs, etc.
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#*If you are trying to create a dichotomous key for a series of animals, you might see that some have feathers, some swim, some walk on legs, etc.
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#*For example, if you are trying to differentiate a set of big cats, you might note that some are brown, some are black, some have stripes, some have spots, some have long tails, some have short tails, and so on.
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#*For example, if you are trying to differentiate a set of big cats, you might note that some are brown, some are black, some have stripes, some have spots, some have long tails, some have short tails, and so on.
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