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    i have to sit my ISA controlled assessment tomorrow and want to know whether i should prepare a preliminary investigation as i'm not sure if it would be necessary for the hypothesis i have been given.

    The hypothesis is: 'Extracts from some plants have properties similar to those of medicinal antibiotics'

    If anyone has done this already may i please have some insight onto weather i should prepare for a preliminary investigation as i am not sure how i would make one for this kind of procedure.

    Many thanks.
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