Curare, a poison extracted from south america shrub, blocks the binding of each by muscle cells. what do you suppose would happen to your muscles, including the ones involved in breathing, if a toxic dose of curare entered your bloodstream?

Dr. arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode. it measures the volume of the sound that occurs at the minimum pressure at which the explosion will occur. it then increases the pressure and measures the volume of the explosions that occur. what kind of investigation is the scientist conducting?