_______________ are rod-shaped and paired structures made of DNA and are located in the nucleus of a cell

One hundred years ago, ____ of young people obtained tertiary education in any industrialized country

a. less than 10% b. between 20% and 45% c. more than 45% d. almost 100%

Myelin is important to intelligence because it:

a. Prevents memory from decaying b. Speeds nerve conduction c. Aids in amount of neural branching d. Cushions the nerve