‘ Key’ is a taxonomical aid used for the identification of …

Biology The Living World All Topic Question for Revision Test Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

‘ Key’ is a taxonomical aid used for the identification of organisms. Each statement in key is called ______.

Couplet and

Lead

Both

None of these

Text Solution

Verified by Experts

The correct answer is:

In a taxonomic key:

• Each pair of contrasting statements is called a couplet.

• Each individual statement within that pair is called a lead.

So:

• Statement in key = Lead

• Pair of statements = Couplet

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