PBS (Public Broadcasting System - United States)

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When was the last common ancestor of humans and chimpanzees?

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Is it possible to reconcile Christianity and evolution?

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True or False? "With increasingly rare exceptions, survival in the West no longer depends on a person's genes."

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True or False? "A single mutation in the HERC2 gene may be responsible for the blue eyes of all the estimated 300 million people who have them. "

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True or False? "But criminologists are uncertain how many times Americans successfully use a gun to ward off attacks; estimates of defensive gun uses range from less than 100,000 a year to more than two million."

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True or False? "A hormonal/chemical wash (estrogen for girls, testosterone for boys) actually enhances certain parts of the brain and changes them structurally before birth."

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True or False? "A species, then, is defined by science as a group of interbreeding or potentially interbreeding populations that is reproductively isolated from other such groups."

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