Listed in the item bank are some key terms and expressions associated with the categories seen in the venn diagram. to find out more information about items, some have more details available when you click on them. drag and drop each item onto the proper area of the diagram. if an item describes more than one category, be sure to place it in the overlapping space. maintaining homeostasis requires that the body continuously monitor its internal conditions. from body temperature to blood pressure to levels of certain nutrients, each physiological condition has a particular set point. for example, the set point for normal human body temperature is approximately 37°c. feedback mechanisms have evolved in living things as a mechanism by which they maintain homeostasis. for example, when your body temperature rises above 37°c, you begin to sweat and the evaporation of this perspiration returns the body to its original temperature. itembank: move to bottom a change in a given direction causes additional change in the same direction. a change in a given direction causes change in the opposite direction. control centers in the brainduring labor, feedback increases the strength and frequency of the contractions until the baby is born. involve a stimulus-response mechanismwhen you exercise, your muscles need more oxygen. your respiration and heart rates increase, allowing more oxygenated blood to be supplied.