Which statement concerning the change in family structures over the past 40 years is true?
A) The percentage of families headed by a married heterosexual couple had declined from 74 percent in 1960 to 50 percent in 2007.
B) Almost 71 percent of American households in 2007 were headed by individuals living alone.
C) Over 31 of households in 2007 contained unmarried partners.
D) Nearly 27 of all households are interracial
E) None of these choices
Question 2
What did the Bush administration propose to do at Nevada's Yucca Mountain?
A) Station American's anti-ballistic missile defense system there.
B) Use it as America's nuclear-waste disposal site.
C) Build a new university where the brightest American students could study science and technology.
D) Build a new nuclear reactor there that could provide electricity to most of the Southwest.
E) None of these choices
A comparison of the sizes of various chemical and biological structures, and the resolving power of
The approval of a new drug is a four-stage process: (1) preclinical investigation, (2) clinical inve
A farm family in Custer, Nebraska, in 1888, a region where Populist sentiment was strong.
Adolescence: 12 years or puberty to the beginning of adulthood.
Structures of the thoracic cavity.
Basic structures of HIV.