Which statement is true?

Question

A. A dichotomous key uses samples to identify organisms using observable traits.
B. A dichotomous key uses question pairs to identify organisms by their group.
C. A dichotomous key uses question pairs to identify organisms by their characteristics.
D. A dichotomous key uses photographs to identify organisms using observable traits.

Answer 1

C. A dichotomous key uses question pairs to identify organisms by their characteristics.