Sleep apnea, if severe, ________ a person's risk of having a stroke or dying
a. slightly lowers
b. significantly lowers
c. slightly increases
d. can double or triple
Answer: d
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Anxiety disorders in the DSM-5 are divided into categories that reflect ____
a. primary dimensions of anxiety (biological/cognitive/behavioral) b. varieties of reaction and avoidance c. the response to treatment (good/poor) d. typical age of onset
The refractory period is the ____
a. ?time it takes to fire an action potential b. ?period of time that neurotransmitters are active within the synapse c. ?time during which a neuron is restoring its resting potential after an action potential has been fired d. ?the total period of time it takes for a neuron to receive information from one neuron and transmit it to another one
Meningiomas typically arise from
A. neurons. B. astrocytes and oligodendrocytes or a combination of the two. C. Schwann and amacrine cells. D. the membranes covering the brain.
More than half of 15- to 17-year-olds report having encountered pornographic material on the Web even when they weren't looking for it
Indicate whether the statement is true or false.