ARTICLE QUESTIONS FOR EXAM #1 (June  2011)

On average, how much higher did older siblings score on IQ tests than their younger siblings?

How did the researchers determine if there was a biological explanation for the difference in IQ scores between older and younger siblings?

The evolution of skin pigmentation is linked to which phenotype?

When did hominids begin to exhibit a substantial loss of hair?

Where in the world do people produce vitamin D all year long and why?