All Flashcards
What is an age structure diagram?
Graphical representation of population distribution by age groups and sex.
Define pre-reproductive age category.
Age group 0-14 years old.
Define reproductive age category.
Age group 15-44 years old.
Define post-reproductive age category.
Age group 45+ years old.
What does a pyramid-shaped age structure diagram indicate?
Rapid population growth due to many young people entering reproductive years.
What does a column-shaped age structure diagram indicate?
Stable population growth with similar numbers in each age group.
What does an inverted pyramid-shaped age structure diagram indicate?
Declining population with fewer young people than older people.
Why are age structure diagrams useful?
Essential for predicting future population trends and understanding societal impacts.
How do birth and death rates relate to age structure?
Diagram shapes reflect the influence of birth and death rates on population growth.
What does a wide base in an age structure diagram signify?
A high proportion of young individuals, indicating a rapidly growing population.
What is an age structure diagram?
Graphical representation of population distribution by age groups and sex.
Define pre-reproductive age category.
Age group 0-14 years old.
Define reproductive age category.
Age group 15-44 years old.
Define post-reproductive age category.
Age group 45+ years old.