1 Select Copy files to iTunes Media folder when adding to library to store all of your media files in the iTunes Media folder. 2  With all of your files in one folder, you can easily transfer or back up your media. 3  If you import media into iTunes from a CD, it's automatically added to your iTunes Media folder.
The average human head weighs 10 to 11 pounds. That is about 8 percent of the weight of a human body. The average adult human brain only weighs about 3 pounds, so most of the weight in the head consists of the skull and other fluids. Continue Reading.
The adult human brain weighs on average about 1.5 kg (3.3 lb). The average weight is about 1370 g in men and about 1200 g in women. Changes over time Edit. Brain size has increased considerably over the course of humans' recent evolutionary history. Homo erectus, a relative of humans, had a brain size of 1,100 cm 3.