Kevin is likely to think that the apple and the potato are the same. In addition, both taste and smell are associated with the chemosensation of the human body that is chemical sensing system. The body of the human chemical sensing system contains the mouth and nose as well as the eyes and throat. In all of these areas, thousands of free nerve endings classify sensations such as taste, odors, hot, cold or even rather sting such as ammonia evaporation that annoys the eyes. It is also through chemosensation that taste and smell really work together.