The answer is <span>C. A hormone produced in the pancreas that regulates the level of glucose in the blood.
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The ordinary work of Sigmund Freud affected the lives of ordinary people in the 20th century because it encouraged people to search for the hidden reasons for their actions. The correct answer is A.
A fertility doctor is a reproductive endocrinologist — a physician who practices a subspecialty of obstetrics and gynecology called reproductive endocrinology and infertility (REI). REI is an area of medicine that addresses hormonal functioning as it pertains to reproduction and infertility in both women and men.