Psychoactive drugs produce their effects by altering A) the brain\'s chemical me

Question

Psychoactive drugs produce their effects by altering A) the brain's chemical message system B) the brainstem C) users' desires D) users' expectations Research indicates that most college students A) underestimate how much their peers are using drugs B) overestimate how much their peers are using drugs ***Just select answer B for s item*** C) are accurate predictors about self and peer drug use D) can accurately predict their peers' drug abuse but not their own Which of the Evidence suggests that heredity influences alcohol dependence. following findings supports this theory? A) B) C) D) Having a fraternal twin who suffers from alcohol dependence is a greater risk factor Having an identical twin who suffers from alcohol dependence is a greater risk An adopted child is more susceptible to alcohol dependence if his adoptive parents An adopted child is less susceptible to alcohol dependence if both biological parent than having an identical twin who suffers from alcohol dependence factor than having a fraternal twin who suffers from alcohol dependence. have a problem with alcohol dependence. have a problem with alcohol dependence.

Explanation / Answer

1. (B) the brainsteam, psychoactive drugs is a chemical substance which act primarily on central nervous system which alter brain.

2. Overestimate how much their peer are using drugs.

3.(b) having an identical twin who suffers from alcohol dependence is a greater risk factor than having a fraternal twin who suffers from alcohol dependence.

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