Through measuring infant perception, Robert Frantz was able to study the __________.

Which of the following statements is TRUE regarding differences in violence between the North and South?

A) Homicide rates are higher in the South relative to the North. B) Southerners approve of violence more than Northerners. C) Northern states are less likely to have legal "retreat rules" regarding the use of deadly force in a conflict situation. D) Southerners are more likely than Northerners to condone violence as a response to an insult.

When looking at the concept of "race," it is important to remember that

a. human groups have intermixed for so many centuries that it is impossible to tell, biologically, to what "race" any given individual belongs. b. the best available evidence suggests that all people descended from the same ancient ancestors in Africa. c. among early human populations, darker skin was a protective adaptation to sun exposure near the equator. d. all of these statements are true.