Points on a sphere or angles in a circle are
measured in units called what

Points on a sphere or angles in a circle are measured in degrees.

Explanation:

A quantity may have different units which are used according to the context. Degree is the unit of measurement of angles. It is represented by the symbol added to the top right end of the magnitude value of the angle.

Radian is also a unit of measurement of angle. Degree and radian can be converted to each other. The conversion expression is  

Degree=180/π*radian

Radian=π/180*degree

According to this expression 180° is equal to radian,90° equal to radians etc.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

explanation:

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