The following histogram represents the number of pages in each book within a collection.What is the frequency of books containing at least 200 but less than 250 pages? 
Definitions:
Competitive Inhibitors
Substances that bind to the active site of an enzyme, competing with the substrate and thus inhibiting enzyme activity.
Chemical Energy
The potential of a chemical substance to undergo a transformation through a chemical reaction, resulting in the release of energy.
Kinetic Energy
The energy that a body possesses due to its motion, dependent on the mass of the body and the square of its velocity.
Allosteric Site
A site on an enzyme other than the active site, to which a specific substance binds, thereby changing the shape and activity of the enzyme. Compare with active site.
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