Human Population (Grade 11 NSC Matric Life Sciences): Flashcards
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Time humans evolved as a species
Time humans evolved as a species
200,000 years ago
Current global human population
Current global human population
Over 8 billion people
3 main factors driving human population growth (AMT)
3 main factors driving human population growth (AMT)
Agricultural, Medical, Technological improvements
Carrying capacity definition
Carrying capacity definition
Max number of individuals an environment can support
Natality rates definition
Natality rates definition
Birth rates
Mortality rates definition
Mortality rates definition
Death rates
3 types of population pyramids
3 types of population pyramids
Expanding, Stable, Declining
Expanding pyramid indicates
Expanding pyramid indicates
Rapidly growing population; typical of developing countries
Declining pyramid shape characteristic
Declining pyramid shape characteristic
Narrow base, wider middle (fewer young than adults)
SA life expectancy: 1960 vs 2016
SA life expectancy: 1960 vs 2016
1960: 49 years; 2016: 60 years