Question
Biology Question on Diversity In The Living World
'Key' is a taxonomical aid used for the identification of organisms. Each statement in key is called a ______ .
A
couplet
B
lead
C
both (a) and (b)
D
none of these
Answer
lead
Explanation
Solution
Key is a taxonomical 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 couplet: 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.