Which of the following are true about the taxonomical aid 'key'?
(i) Keys are based on the similarities and dissimilarities.
(ii) Key is analytical in nature.
(iii) Keys are based on the contrasting characters in pair called couplet.
(iv) Same key can be used for all taxonomic categories.
(v) Each statement in the key is called Lead.
Choose the most appropriate answer from the options given below :
Text Solution
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(i) True – Keys are based on similarities and dissimilarities among organisms.
(ii) True – A key is analytical in nature because it helps in systematic identification.
(iii) True – It uses contrasting characters arranged in pairs called a couplet.
(iv) False – A single key cannot be used for all taxonomic categories; it is specific to a group.
(v) True – Each statement in a key is called a lead.
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