Multiple Choice
Which statement best contrasts roundworms and tapeworms?
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1. Introduction to Biology
Introduction to Taxonomy
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In using a dichotomous key for identifying organisms, which step do you always begin with?
A
The last pair of statements or questions
B
A randomly chosen step
C
The first pair of statements or questions
D
The step that matches the organism's color
Verified step by step guidance1
Understand the purpose of a dichotomous key: It is a tool used to identify organisms by answering a series of paired questions or statements that lead to the correct identification.
Recognize the structure of a dichotomous key: It consists of sequential pairs of statements or questions, each offering two choices that guide the user to the next step.
Begin at the first pair of statements or questions: Always start at the beginning of the key, as it is designed to systematically narrow down the possibilities based on observable characteristics.
Evaluate the organism's traits: Compare the organism's characteristics to the options provided in the first pair of statements or questions, and choose the one that matches best.
Follow the path indicated by your choice: Based on your selection, proceed to the next pair of statements or questions, continuing this process until the organism is identified.
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