Congress wanted to raise money for the treasury because the needed to pay off war debts.
two angles that share a vertex and a side but no points in their interiors ... a point is in this if it does not lie on the angle itself and it lies on a segment with ... a measurable part of a line that consists of two points, called endpoints, and all of the ... an adjacent angle whose noncommon sides are opposite rays (supplementary).
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The inducer deactivates the repressor protein. This allows
the gene which the repressor protein suppresses, to be actively transcribed.
When the inducer fits in its allosteric site on the repressor protein, the repressor changes conformation and is not able
to bind the operator site of the operon.