<span>A woman going into labor demonstrates a positive feedback loop. As the baby's head pushes against the cervix, receptors in the cervix send nerve impulses through neurons (nervous cells) to the brain. These neurons send a signal to the pituitary gland (in brain) to release a hormone oxytocin. This hormone acts on the effector
(muscle in the uterus) to stimulate/enhance muscle contractions. The stronger the muscle contraction, the more the head of fetus pushes on the cervix continuing the loop.</span>
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Answer:
I think it would be C
(also can u help me with a question? I added it in my page thing)
Soil bacteria convert atmospheric nitrogen into nitrates that becomes usable by a plant's root(s) to absorb it and use it in chemical reactions.
