In a population pyramid, the size of the population under investigation is depicted on the horizontal axis, and age is aligned on the vertical axis. The result is a series of bars stacked on top of one another, each representing an age category (typically in 5-year age groups), with the youngest age group represented by the bottom bar and the oldest age group by the uppermost bar. The horizontal length of each bar represents the number of individuals in the specific age group for the population depicted.
The ice age made them very cold and travel across the Bering strait to get to Alaska so that they could then flee to Africa which is where conditions where slightly better and they would have a higher chance of living.
To recognize this technique, pay attention to the background of the ad or to the story of the commercial. The transfer technique wants you to associate the good feelings created in the ad with the product. For example, a commercial showing a happy family eating soup may want you to associate a feeling of comfort and security with their soup products.
