What is EXPONENTIAL GROWTH?
It's when the growth rate of a population increases rapidly over time.
What is a POPULATION?
All the organisms of one species living in a defined area.
What is a LAG PHASE?
It's the period of time in population growth when an organism is adapting to its new environment and growth is slow.
What is LOG GROWTH?
When the growth rate of a population increases rapidly over time.
What is a STATIONARY PHASE?
When the growth of a population has slowed to zero.
What is a CARRYING CAPACITY?
It's the maximum size of a population that an environment can support in terms of food, water and other resources.
What is a BIRTH RATE?
It's the total number of live births over time.
What is the DEATH RATE?
It's the total number of deaths over time.
What is the RATE OF NATURAL INCREASE?
It's the birth rate minus the death rate.
What is MIGRATION?
It's the movement of people into (immigration) or out of (emigration) a region, country or other area.
What are PUSH FACTORS?
Factors that encourage people to move away from an area.
What are PULL FACTORS?
Factors that encourage people to move into an area.
What is DENSITY?
The number of people living in a population in a defined area.
What is DISTRIBUTION?
Where populations of people either do or do not live.
What is a POPULATION PYRAMID?
It's a diagram that shows the proportion of the population that is male and female in different age groups, usually 5 year intervals.
What is an AGE PYRAMID?
A diagram that shows the proportion of the population that is male and/or female in different age groups, usually 5 year intervals.
Who are DEPENDENTS?
People in the population who are not economically active or working.
Who are INDEPENDENTS?
People in the population who are economically active or working.
What is FAMILY PLANNING?
Methods used by a couple to decide when and how many children to have, may be practised by couples and encouraged by governments.
What is CONTRACEPTION?
A range of methods used to prevent pregnancy.
What is a PRONATALIST POLICY?
A national or regional policy that aims to encourage couples to have children.
What is an ANTINATALIST POLICY?
A national or regional policy that aims to discourage couples from having children.