When simon levay examined interstitial nucleus 3 in 41 people who had died, he found that in the homosexual males in his sample, this nucleus was a. comparable in size to the whole group of heterosexual males b. comparable in size to the heterosexual males who had died of aids c. larger, but only in those who had died of aids d. comparable in size to the heterosexual females?

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?