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Biology
The Living World
34 questions from 22 papers, each with its answer.
- 34 questions
- 22 papers
- 0.96% of Biology
Taxonomical aids - key
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Which of the following are true about the taxonomical aid 'key'? (a) Keys are based on the similarities and dissimilarities. (b) Key is analytical in nature. (c) Keys are based on the contrasting characters in pair called Couplet. (d) Same key can be used for all taxonomic categories. (e) Each statement in the key is called Lead. Choose the most appropriate answer from the options given below:Keys are analytical in nature, based on similarities and dissimilarities, using contrasting characters in pairs (couplets); each statement is called a lead. Separate keys are needed for each taxonomic category, so (d) is wrong.
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