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Question

The keys are based on the contrasting characters generally in a pair called

A
lead
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B
couplet
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C
flora
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D
monograph
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Solution

The correct option is B couplet
Key is another taxonomical aid used for identification of plants and animals based on the similarities and dissimilarities. The keys are based on the contrasting characters generally in a pair called couplet. Each statement in the key is called a lead.

Flora and monographs are some other means of recording descriptions. Flora contains the actual account of habitat and distribution of plants of a given area. While monographs contain information on any one taxon.

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