In what way does having two X chromosomes provide a health advantage for girls and women?
A. X chromosomes are less likely to carry genetic diseases.
B. X chromosomes are less susceptible to genetic mutations.
C. Having two X chromosomes triggers the production of hormones that strengthen the immune system.
D. Having two X chromosomes allows normal genes on one X chromosomes to override any abnormalities on the other.
D. Having two X chromosomes allows normal genes on one X chromosomes to override any abnormalities on the other.
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The Civil War was fought from
A) 1864 to 1865. B) 1861 to 1865. C) 1860 to 1863. D) 1860 to 1865.
Which of the following European ?great powers? was least affected by industrialization and modernization by the end of the 19th century?
A) France B) the Dual Monarchy C) Germany D) Britain E) Prussia
Which of the following became a major weakness for the presidential candidacy of John McCain?
A) his "maverick" voting record in Congress B) selection of the inexperienced Sarah Palin as his running mate C) lack of proof of his claim that he was a prisoner of war in Vietnam D) Barack Obama's vast experience
The growth of labor unions and the implementation of better working conditions in England owed a debt of gratitude to which of the following?
A) The threat of Marxism that made Parliament amend laws and individual businessmen show more concern for their workers. B) The example set by labor unions and industrial managerial practices known to be in place in the United States. C) The urbanization and education of more people in various countries, of which England wanted to prove itself most liberal. D) Those individuals who, risking their jobs and in some cases their lives, were willing to work toward gaining legal acceptance of labor unions. E) The Chartist movement in England, which initiated long-term changes both within and outside of Parliament.