Final answer:
Homeostatic regulation is the process by which organisms maintain stable internal conditions. Data sets that show physiological variables being controlled within normal ranges provide evidence of homeostatic regulation.
Step-by-step explanation:
Homeostatic regulation is the process by which organisms maintain stable internal conditions. In order for a data set to provide evidence of homeostatic regulation, it should show that physiological variables are being controlled within a normal range. For example, if the data set shows that body temperature remains fairly constant around 37°C or 98.6°F, it indicates the presence of homeostatic regulation. Similarly, if the data set demonstrates that blood glucose levels are being maintained at a constant level, it also suggests the existence of homeostatic mechanisms.