Question

'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 the above
  

Answer 1

The correct option is B Lead

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. Separate taxonomic keys are required for each taxonomic category such as family, genus and species for identification purposes. Keys are generally analytical in nature.

So, the correct answer is 'Lead'.