Knockout NEET Sept 2020
An exhaustive E-learning program for the complete preparation of NEET..
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(i) Indented key provides sequence of choice between two or more statements of characters of species. The user has to make correct choice for identification. (ii) Bracketed key (1) are used for contrasting characters like indented key but they are not repeated by intervening sub-dividing character and each character is given a number in brackets.