Hormones that initiate pain messages and also cause muscle fibers in the uterine wall to contract (during labor) are prostaglandins.
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Answer:
B. its effectiveness
Explanation:
Obviously, a drug (or any medical treatment) should be used only when it will benefit a patient. Benefit takes into account both the drug's ability to produce the desired result (efficacy) and the type and likelihood of adverse effects (safety).
Answer:
The stem
Explanation:
the root is what holds and absorbs the water delivering it to the stem which then carries the water to the leaves
Explanation:
it is unique in being the only human bone that is not attached by joints to any other bone, but is suspended in the neck by muscles and ligaments alone.