Why does changing the ph of a solution affect the ability of an enzyme to catalyze a chemical reaction

Which is the function of the hypothalamus in thermoregulation? answers: -sensor -effector -stimulus -intergrating center it's either a or c i believe

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.