Understanding Population Dynamics

What does the total fertility rate predict about a population?

• The average lifespan of individuals in the population

• The number of species within the population

• If the population's size will increase, decrease, or stay the same

• The genetic diversity of the population

What does an age structure diagram represent?

• The economic status of different age groups within a population

• The geographical distribution of age groups within a population

• The relative numbers of organisms of each age within a population

• The educational levels across different age groups in a population

What can a population with many young people compared to older people likely experience?

• Rapid population decline

• Stable population size

• Rapid population growth

• Decrease in genetic diversity

What is the naturally occurring sex ratio of humans at birth?

• 95 males for every 100 females

• 106 males for every 100 females

• 100 females for every 106 males

• 100 males for every 100 females

What challenge do nations with older populations face?

• Decreasing technological advancements

• Increasing numbers of older people require care and financial assistance from fewer working-age citizens

• Providing enough military personnel

• Expanding urban areas to accommodate growing populations