Childbirth is an example of positive feedback . The stimulus is the hypothalamus and the control center is oxytocin . The effector is the release of oxytocin . The action of the effector is [ Select ] the release of oxytocin the hypothalamus the muscles of the uterus the baby uterine contractions
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During childbirth, in response to uterine contractions, the hormone oxytocin is released from the pituitary gland. Oxytocin stimulates the uterine muscles to contract more forcefully and more frequently. Uterine contractions in turn stimulate the pituitary gland to secrete even more oxytocin. What is this an example of? Neutral feedback Negative feedback Positive feedback Run-away selection
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