Multiple Choice
A dichotomous key is a _____.
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1. Introduction to Biology
Introduction to Taxonomy
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A dichotomous key is used to _____.
A
classify organisms into domains and kingdoms
B
identify organisms based on a series of choices between alternative characteristics
C
determine the evolutionary history of a species
D
measure genetic variation within a population
Verified step by step guidance1
Understand the concept of a dichotomous key: A dichotomous key is a tool used in biology to identify organisms by following a series of choices between two alternative characteristics. It is not used for classification into domains and kingdoms, determining evolutionary history, or measuring genetic variation.
Recognize the purpose of the dichotomous key: Its primary function is to help identify organisms based on observable traits, such as physical characteristics or behaviors, through a step-by-step process.
Analyze the options provided in the problem: The correct answer aligns with the purpose of the dichotomous key, which is to identify organisms based on a series of choices between alternative characteristics.
Eliminate incorrect options: Classification into domains and kingdoms, determining evolutionary history, and measuring genetic variation are not functions of a dichotomous key. These tasks are performed using other tools and methods in biology.
Conclude that the correct answer is: 'identify organisms based on a series of choices between alternative characteristics,' as this matches the definition and purpose of a dichotomous key.
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