A population pyramid is a graphic depiction of:
A) a population's racial and ethnic trends at a given point in time.
B) a population's emigration and immigration trends at a given point in time.
C) a population's age and sex distribution at a given point in time.
D) a population's economic and natural resources at a given point in time.
E) a population's crude birth and death rates at a given point in time.
Question 2
Identify a true statement about developing countries.
A) Most developing countries, compared with developed countries, have large proportions of people age 65 and older who are no longer employed but require costly medical services.
B) Most developing countries, compared with developed countries, have lower death rates.
C) The United States secured the fifth rank in environmental performance, above all developing countries.
D) The largest flow of migrants have moved from one developing country to another.
E) Most least developed countries, compared with developed countries, have lower death rates.
Anatomy of the Lotka-Volterra equations for predator-prey population growth.
Details of plant population biology from repeat photography: (a) saguaro cactus in MacDougal Crater,
Population Growth and Change
Ethnic Diversity
World Population, 1850–2150
Population Forecasting