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Asked by junibj - 1 year ago
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joensf Level 78
Answered 1 year ago
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A dichotomous key is useful because it helps us identify an organism by following a series of either/or questions. It's kind of like a treasure hunt that ends up with the name of the organism.

http://answers.yahoo.com/question/index?...

The word dichotomous comes from two Greek words that together mean, "divided in two parts". A dichotomous key consists of a series of two part statements that describe characteristic of organisms. At each step of a dichotomous key the user is presented with two choices. As the user makes a choice about a particular characteristic of an organism they are led to a new branch of the key. Eventually the user will be led to the name of the organism that they are trying to identify.

http://www.chacha.com/question/why-are-d...
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Sparky5458 Level 63 / Retired Golfer
Answered 1 year ago
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It makes it easy.
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