Answer:
Explanation:
Childbirth is an example of positive feedback.
Positive feedback is a process in which the effects of a small disturbance on a system are amplified, leading to an even greater response. In the context of childbirth, positive feedback refers to the intensification of contractions during labor. As contractions occur, they stimulate the release of the hormone oxytocin, which, in turn, increases the strength and frequency of contractions. This cycle continues, leading to the progressive intensification of contractions until the baby is born.
The other options listed (blood sugar homeostasis and the stress response) involve negative feedback mechanisms. Negative feedback is a regulatory process that works to maintain stability and balance within a system, countering any deviations from the set point. Blood sugar homeostasis involves insulin release to lower elevated blood sugar levels, and the stress response aims to return the body to a state of balance after the initial stressor.
