When women are in labor, the uterus contracts more and more strongly by the actions of a peptide hormone messenger. This scenario is an example of.. * 1 point a negative feedback loop. a positive feedback loop. signal transduction immediately changing gene expression in its target cells. the key role of the anterior pituitary gland in regulating uterine contraction.

The correct answer is -  a positive feedback loop

Explanation:

Oxytocin is a peptide hormone that is released during labor in women which contracts the uterus and n increase of the oxytocin causes more release of oxytocin hormone to increase the contraction more strongly.

Oxytocin shows a positive feedback loop as its release leads to more of the oxytocin release by stimulates its more release. Most of the hormones show negative feedback release.

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.