Key' is a taxonomical aid used for the identification of organisms. Each statement in key is called a _________.

Options

A. couplet
B. lead
C. both (a) and (b)
D. none of these

Answer

B

Explanation

Key is a taxononmical aid used for identification of plants and animals based on the similarities and dissimilarities. The keys are based on contrasting characters generally in a pair called coulpet. It represents the choice made between two opposite. options, which results in acceptance of only one and rejection of the other. Each statement in the key is called a lead.