After a hormone has exerted its effects, it typically
A) continues to act until an opposing hormone is secreted.
B) spontaneously degrades.
C) is absorbed by its target cell.
D) is inactivated or removed from the blood.
E) is absorbed by the gland that secreted it.
D) is inactivated or removed from the blood.
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The swallowing center in the brain, which coordinates the muscular reflexes, is located in the
A) medulla oblongata. B) cerebellum. C) pons. D) cerebrum. E) hypothalamus.
The mesoderm associated with the allantois spreads to cover the entire inside of the trophoblast. This combination of mesoderm and trophoblast is the
A) blastodisc. B) chorion. C) mesoderm. D) allantois. E) yolk sac.
Which of the following could result from an overly zealous exercise program?
A. Polycythemia B. Hypoplastic anemia C. Mononucleosis D. Leukopenia E. Leukocytosis
The smell and taste of foods are influenced by all of the following except
A. a person's mood. B. the temperature of the food. C. the texture of the food. D. the appearance of the food. E. all of these influence the smell and taste of foods.