One reason that pregnant women's metabolic rates change is that the placenta secretes
A. prolactin, which lowers metabolic rate so that nutrients can be stored in milk.
B. human chorionic thyrotropin, which stimulates the thyroid gland and raises metabolic rate.
C. human chorionic somatomammotropin, which inhibits fatty acid metabolism and lowers metabolic rate.
D. human placental lactogen, which stimulates glycolysis and raises metabolic rate.
E. human chorionic gonadotropin, which stimulates metabolism of glucose and raises metabolic rate.
Answer: B
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You are a neurosurgeon exploring a patient's right primary motor cortex during awake brain surgery. As you stimulate various areas, you are asking the operating room nurses to watch for the resulting muscle contractions on the left side of the patient's body.
Answer the following statement true (T) or false (F)
Which vessel in the figure is labeled "F" ?
a) left femoral vein b) left great saphenous vein c) left popliteal vein d) left anterior tibial vein e) left small saphenous vein
The female homologue of the penis is the ________.
Fill in the blank(s) with the appropriate word(s).
Molecules that form when electrons are shared unequally between atoms are called ________ molecules.
A. salt B. nonpolar C. polar D. lopsided E. None of the choices are correct.