Why does the function of the hormone oxytocin in the progression of labor during childbirth illustrate a positive feedback mechanism? because an increase in oxytocin level decreases the contractions because an increase in oxytocin level increases the contractions because an increase in oxytocin level has no effect on the contractions nextreset

Because an increase in oxytocin level increases the contractions 

Oxytocin can be defined as a hormone that usually acts on organs of the body which includes the uterus and breast. They can also act as a chemical messenger in the brain by controlling some important aspect of reproductive system such as lactation and childbirth. However, the positive feedback mechanism of oxytocin is that an increase in release of oxytocin will stimulate more contractions.

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the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.