Cigarette smoke produces more wrinkles by ____
a. dilating blood vessels and increasing the breakdown of globulin and insulin
b. constricting blood vessels and increasing the breakdown of globulin and insulin
c. dilating blood vessels and increasing the breakdown of collagen and elastin
d. constricting blood vessels and increasing the breakdown of collagen and elastin
ANS: D
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Studies show that when people of different ethnicities, cultures, and sexual orientations rate the attractiveness of others, there is strong agreement in their assessments. The most likely reason for this is that ____
a. people tend to be most attracted to those who look most similar to themselves b. the media's strong influence on how we perceive beauty is universal c. beauty is in the eye of the beholder d. attractive features and youth are signs of physical and reproductive fitness
The effects that HIV has on the body as it progresses to AIDS, can be divided into four stages: ____, the clinically asymptomatic stage, the symptomatic stage, and AIDS
a. acute infection c. variable infection b. chronic infection d. colonized infection
Which of the following are the most common symptoms of scabies?
A. Seeing nits or crawling lice on the body B. Intense itching and a pimple-like skin rash C. Irregular menstrual bleeding D. Fever and nausea E. Sores around the mouth
Debra wants to conduct a sex study on individuals who enjoy sadomasochism. She contacts a few of her friends who engage in sadomasochistic behavior. In turn, they contact others whom they know are sadomasochists or attend S/M parties. Eventually, a sample of 200 participants is obtained. Identify the type of sampling method used in this survey.
A. stratified sampling B. random sampling C. probability sampling D. snowball sampling