Women lose an average of _____ percent of their bone mass from the time of menopause to age 60

Through what means did researchers discover the characteristics of two major types of sleep?

a) the polysomnogram b) the microelectrode c) behavioral observations d) the fMRI

Globalization is ____

a. the number of births per woman b. the ways people grow and change across the life span c. the total pattern of a group's customs, beliefs, art, and technology d. the increasing connections between different parts of the world in trade, travel, migration, and communication