Gene–environment ________ refers to genetic variation among people that influences the environments to which they are exposed

How much larger was the size of early Homo's brain compared to the brains of earlier hominids?

a. 100% b. 200% c. 55% d. 70%

One U.S. Department of Justice survey revealed that in _____ out of ten reported rape cases,the victim knew his or her offender

a. 3 b. 6 c. 9 d. 12