How can RNA be distinguished from DNA?
A) RNA does not contain a sugar. B) RNA lacks the base uracil.
C) RNA is never found in the nucleus. D) RNA is single-stranded.
D
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The "QRS" complex visible in a normal electrocardiogram is associated with the
A. excitation from the AV node and depolarization of the ventricles. B. excitation from the SA node and depolarization of the atria. C. excitation from the SA node and repolarization of the ventricles. D. excitation from the AV node and repolarization of the atria. E. activity in the vagus nerve and release of acetylcholine.
Which structure is found on the interior of the cell?
a. Capsule b. Cell wall c. Pili d. Cytoplasm e. Plasma membrane
Differences in patterns by which muscles connect to bones is relatively invariant in vertebrates
Indicate whether the statement is true or false.
You can receive public information about your physician from ________
A) the U.S. Environmental Protection Agency B) the U.S. Food and Drug Administration C) the Federation of State Medical Boards D) the Centers for Disease Control and Prevention