When using a dichotomous key in taxonomy, what is the first step you should always begin with?

• A. Start at the first pair of statements in the key
• B. Randomly select a statement to start with
• C. Skip to the last step to check your answer
• D. Begin with the most specific characteristic you recognize

Answer: (A)

Verified step by step guidance

1. Understand the purpose of a dichotomous key: It is a tool used in taxonomy to identify organisms based on a series of paired statements that describe characteristics.
2. Recognize that the dichotomous key is designed to be followed sequentially, starting from the first pair of statements and progressing step by step.
3. Begin at the first pair of statements in the key. These statements will typically describe broad, general characteristics of the organism being identified.
4. Compare the organism's characteristics to the two options provided in the first pair of statements and choose the one that matches best.
5. Follow the path indicated by your choice to the next pair of statements, continuing this process until the organism is identified.