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A series of alternative choices that leads to identification of an unknown bacteria is called Select one: O a. A Dichotomous
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The correct option is a. A Dichotomous key

A dichotomous key is a tool created by scientists that helps to identify an unknown organism. It consists of a series of choices that lead the user to identify the given organism. The word 'Dichotomous' means divided into two parts. Dichotomous keys always present two choices to the users in each step, based on the characteristics of the organisms. It is the most used type of identification key used in biology.

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