A substance that cannot be broken down into a simpler substance by chemical means is a/an ________.
A. element
B. compound
C. nucleic acid
D. molecule
Answer: A
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The portion of the peripheral nervous system that is composed of nerve fibers that innervate skeletal muscle is called the
A. autonomic nervous system. B. somatic motor nervous system. C. parasympathetic nervous system. D. afferent nervous system. E. sympathetic nervous system.
During an asystole condition, an electrocardiograph will display a jagged line
Indicate whether the statement is true or false
Which of the following is both an anion and a compound?
A) Na+ B) Cl- C) K+ D) HCO3- E) NaCl
Muscle tone
A. is a time during which the tissue cannot respond again. B. results in complete and incomplete tetanus. C. is a condition in which the muscle fiber only partially relaxes between contractions. D. is a condition in which stimuli occur so rapidly that there are no intervening relaxations. E. is a constant tension produced by muscles for long periods of time.