Once labor begins in childbirth, contractions increase in intensity and frequency until delivery. The increasing labor contractions of childbirth are an example of
A)a bioinformatic system.
B)positive feedback.
C)negative feedback.
D)feedback inhibition.
E)enzymatic catalysis.

Question

Quizplus · Accepted Answer

The increasing labor contractions of childbirth are an example of positive feedback, where a stimulus (contractions) triggers a response (more contractions) that amplifies the stimulus until a threshold is reached (delivery). This is in contrast to negative feedback, where a stimulus triggers a response that counteracts the stimulus to maintain homeostasis. The other options (A, D, E) are not relevant to the physiological process of childbirth.

Once Labor Begins in Childbirth, Contractions Increase in Intensity and Frequency