Which of the following is NOT considered an essential element for a living organism?
A) hydrogen
B) nitrogen
C) oxygen
D) mercury
E) carbon
D) mercury
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After brain surgery, a patient receiving postoperative care in an intensive care unit began to pass large volumes of very dilute urine. The ICU nurse administered a medicine that mimics one of the following hormones. Which one?
A) aldosterone B) epinephrine C) renin D) ADH E) cortisol
All of the following occur at puberty except
A) FSH levels rise. B) GnRH levels decline. C) levels of sex hormones rise. D) skeletal muscle fibers are stimulated. E) secondary sexual characteristics begin to develop.
Muscular arteries
A) are larger than elastic arteries and smaller than arterioles. B) are exemplified by the aorta. C) serve as the cushion to prevent sudden rises in blood pressure from causing trouble for the circulation. D) have a thick media with a large amount of smooth muscle fiber within them. E) None of the answers are correct.
If the muscle fiber is stimulated so rapidly that it does not have a chance to relax at all between stimuli, a smooth, sustained contraction of maximal strength known as ____________________ occurs
Fill in the blank(s) with correct word