Biology for IGCSE & O level - Characteristics And Classification Of Living Organisms (Section 7 - No. 2)

Which of the following best describes a dichotomous key?
A key used to identify the age of an organism
A key used to classify organisms based on their size.
A key that uses a series of paired statements or questions to identify organisms.
A key only used for identifying plants.

Explanation

A dichotomous key uses paired statements or questions.

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