Why have the functions of the family changed over time?
A) Most household functions were replaced with technology when both parents began working outside of the home.
B) As societies became more complex, the demands placed on the family became too much for it to sustain alone, so other institutions developed to assist with certain functions.
C) As family size decreased, children had to take on more adult responsibility.
D) The discovery of electricity allowed families more time together in the evening, which increased the need for family communication and emotional understanding.
B
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Research about the sex and sexuality has demonstrated that ____
a. contraception is a relatively new idea b. women often desire more sexual partners than do men c. prostitution is found in most large cultures d. male virginity is more prized than female virginity
Motives that include our impulses, our drives, and our striving toward immediate gratification of our needs are:
a. peripheral motives b. propriate motives c. automatic motives d. covert motives
Consider the situation where two eggs are fertilized by two different sperm in one womb at the same time. These offspring are called ________ twins and share about ________ of their genetic material in common, just like siblings born at different times
a. monozygotic; half c. identical; 75 percent b. dizygotic; half d. fraternal; 25 percent
In studies of prion proteins in cell culture, the abnormal prions
A. "hijack" deoxyribonucleic acid (DNA) in order to produce more abnormal prions. B. convert normal prions into the abnormal form. C. increase calcium influx, which triggers apoptosis. D. enhance the expression of death genes that produce caspases.