Which of the following is an example of positive feedback?
Which of the following is an example of positive feedback?
During childbirth, increasing levels of oxytocin hormone is released to increase the strength of uterine muscle contractions.
After eating a sugary donut, your blood glucose levels rise above normal. This stimulates the pancreas to release insulin, which stimulates cells to take in the glucose in order to return blood glucose to normal levels.
A rise in body temperature stimulates the sweat glands to produce sweat. This cools the body back down to normal temperature.
Your blood pressure falls below normal, so the nervous system stimulates an increase in heart rate to help increase blood pressure back to a normal range.
