which option is an example of an automatic regulatory reaction

Answer 1

An example of an automatic regulatory reaction is the process of homeostasis in the human body, such as the regulation of blood glucose levels. When blood glucose levels rise after eating, the pancreas automatically secretes insulin, which facilitates the uptake of glucose by cells and helps return blood sugar levels to a normal range. Conversely, if blood sugar levels drop, the pancreas releases glucagon, which prompts the liver to release stored glucose into the bloodstream. This automatic response is crucial for maintaining stable internal conditions in the body.