The loss in the ability to write is known as _____

How much of human DNA is genetically similar to that of chimpanzees?

a. Almost none of it b. 98-99% c. 80% d. 50%

Junior high schools were typically comprised of grades

A) 6 to 8. B) 6 to 9. C) 7 to 8. D) 7 to 9.