when glucose levels in your blood rise, your brain sends a signal to your pancreas. the pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lower blood sugar levels. is this a:

Question

positive feedback
negative feedback
homeostatic feedback

Answer 1

The process you described is an example of negative feedback. In this mechanism, when blood glucose levels rise, the brain signals the pancreas to release insulin, which helps to lower the blood sugar levels by facilitating the uptake of glucose into cells. Once blood sugar levels return to a normal range, the secretion of insulin decreases, maintaining homeostasis. This negative feedback loop helps to keep blood glucose levels within a stable range, counteracting changes rather than amplifying them.