The population pyramid of a city in southern Florida, Arizona, or even northern Japan may have a visual appearance of ________ because the city's population is dominated by elderly people.
A) being upside down
B) having a wide base
C) having perfectly vertical sides
D) being an age-sex ratio
E) being rightside-up
Question 2
The shape of a country's population pyramid
A) may be used to predict maternal mortality rates.
B) cannot be used to determine infant mortality rates.
C) may be used to estimate the country's dependency rate.
D) cannot be used to estimate the country's sex ratio.
E) is determined primarily by the combination of its crude birth rate and its crude growth rate.
Details of plant population biology from repeat photography: (a) saguaro cactus in MacDougal Crater,
Permafrost is found in much of Northern Canada
Southern Wood Violet
Projections of the Racial-Ethnic Makeup of the U.S. Population
The Inverted Income Pyramid: The Proportion of Income Received by Each Fifth of the U.S. Population