Describe and explain the demographic transition model
What will be an ideal response?
The DTM is a model based on crude birth rates, crude death rates, and the rate of natural increase.
It suggests that populations in a given region will undergo a series of transitions, as first death
rates begin to fall and, later birth rates fall. It is premised that initially, regions have high birth and
death rates and thus little population growth; as deaths decline, with births remain high, there is a
period of rapid population growth. In time, it is expected that birth rates will also decline, thus
leading to a later stage where births and deaths cancel each other, resulting in little population
growth. A final stage is premised where death rates might actually surpass birth rates, thus leading
to a condition of population decline. The DTM does not factor include any measure of migration.
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The flow characteristics of rivers change over time. Indicate whether the statement is true or false
The "filtering model" of housing markets is based on what principle?
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Approximately how often does an error occur during DNA replication?
A) 1 in a million B) 1 in a 10 million C) 1 in a billion D) 1 in 10 billion