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What neurotransmitter is released from the parasympathetic postganglionic fiber?
Demographic Transition
A model that describes the transformation of countries from having high birth and death rates to low birth and death rates as a society progresses economically and socially.
World Population
The total number of living humans on Earth at a given time, which affects resource demand, environmental sustainability, and global policies.
An Essay on the Principle of Population
A work by Thomas Malthus arguing that population growth would outpace agricultural production, leading to widespread poverty and famine unless controlled by societal measures.
Thomas Malthus
An 18th-century British economist known for his theory on population growth, which posits that population increases geometrically while food supply increases arithmetically.
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