A drug that has the ability to alter mood, perception, or behavior is said to be
A. illicit.
B. dangerous.
C. psychoactive.
D. addictive.
Answer: C
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The combining form that means stomach is ________.
Fill in the blank(s) with the appropriate word(s).
Toll-like receptors differ from scavenger receptors in that they _____
a. bind to common repetitive arrays on microbial surfaces b. stimulate a pathway that causes enzymatic degradation of the microbe to which they bind c. are soluble receptors that bind to microbes in extracellular spaces d. mediate signal transduction pathways, causing cytokine production.
The bar graph shows the increasing life expectancy of males in the United States from 1930 to 2010. Use this graph. In which of the years shown was the life expectancy of males in the United States approximately the same?
A) 2000 and 2010
B) 2010 and 2020
C) 1990 and 2000
D) 1980 and 2030
E) 2010 and 1990
There are two functional divisions of the nervous system. They are the ________ nervous system and the ________ nervous system
A) voluntary, autonomic B) sympathetic, parasympathetic C) central, peripheral D) thoracic, lumbar