A worldwide team of researchers pooled their data on the DNA and schooling of 126,559 people. All the genetic variations they examined accounted for about percent of the schooling differences among individuals in this large sample.

The deserts of the sahara and australia are associated with

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle

At which location in earth’s interior does the top density continue to increase as thickness decreases?