Present only during pregnancy, the ________ produces human chorionic gonadotropin (hCG) hormone, estrogen, and progesterone.
A. fallopian tube
B. ovary
C. placenta
D. fetus
Answer: C
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A normal or narrow QRS complex indicates the impulse is not formed in the ventricles and is termed:
A) supraventricular B) midventricular C) idioventricular D) aberrant conduction
As a result of an acute occlusion of the coronary arteries, and subsequent hypoxia, the myocardial cells go through a predictable pathway to cell necrosis and myocardial infarction called ____.
A. depolarization B. depression C. reciprocity D. penumbra
Direct action may occur after exposure to any type of radiation, but it is much more likely to happen after exposure to
a. low-LET radiation such as x-rays. b. low-LET radiation such as gamma rays. c. high-LET radiation such as alpha particles. d. nonionizing radiation such as microwaves.
Which of the following enzymes digest(s) fats in the small intestine?
A. intestinal lipase B. sucrase, maltase and lactase C. nuclease D. peptidase