Of the following list, which two factors are the main causes of differences among humans?
1) genetic variation
2) differences in brain size
3) differences in metabolism
4) environmental differences

Question

Quizplus · Accepted Answer

Genetic variation and environmental differences are the main causes of differences among humans. While brain size and metabolism may vary slightly among individuals, they are not major drivers of differences among humans to the same extent as genetics and environment.

Of the Following List, Which Two Factors Are the Main