Symptoms of withdrawal when drug use is stopped
A. may result from lower-than-normal secretion of neurotransmitter.
B. are psychological, not physical.
C. may be alleviated by taking a drug that interacts with the same receptor as the original drug.
D. both "may result from lower-than-normal secretion of neurotransmitter" and "may be alleviated by taking a drug that interacts with the same receptor as the original drug" are correct.
E. All of the choices are correct.
D
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The amount of a given gas dissolved in the blood ________.
A. is described primarily by Boyle's law B. is directly proportional to the partial pressure of the gas C. increases at higher altitudes D. All of the choices are correct.
Intense exercise that results in a great deal of anaerobic activity
A. converts some slow-twitch fibers into fast-twitch fibers. B. increases muscular strength and mass. C. enlarges slow-twitch fibers. D. decreases the efficiency of fast-twitch fibers. E. decreases muscle strength and mass.
In a evolutionary tree constructed using morphological and molecular data, annelids would be more closely related to mollusks nematodes
Indicate whether the statement is true or false
The two divisions of the skeleton are called axial and ________.
Fill in the blank(s) with the appropriate word(s).