$A$ $Couplet$ represents the choice made between two opposite options,which results in:

  • A
    rejection of both the options.
  • B
    acceptance of both the options.
  • C
    either acceptance or rejection of both the options.
  • D
    acceptance of only one and rejection of the other.

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What cannot be obtained through research on plants in a botanical garden?

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When can a botanical garden provide taxonomic information for research at a single location?

Amongst the given taxonomic aids, how many are associated with the preservation of specimens?
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