Currently in the United States, the percentage of overweight adults is

According to the Atkinson-Shiffiin model, long-term memory

a. has a strictly limited capacity. b. contains only memories that arrived more than an hour ago. c. contains memories that are relatively permanent. d. contains material that is easily lost from memory.

What percentage of variation of intelligence is estimated to be the result of genetics?

10% 30% 50% 80%