How Many Years Did It Take for the World Population

question 103

Multiple Choice

How many years did it take for the world population to go from one billion to six billion?

• A) 100,000
• B) 1 million
• C) 200
• D) 10,000
• E) 1 billion

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Definitions:

Fight-or-Flight Response

A physiological reaction that occurs in response to perceived harmful events, attacks, or threats to survival.

Sympathetic

Pertaining to the sympathetic nervous system, which controls the body's responses to stress and regulates vital functions such as heart rate.

Allostatic

Pertaining to allostatic load, the cumulative wear and tear on the body's systems due to chronic stress.

GAS

The General Adaptation Syndrome, a three-stage process that describes the physiological changes the body goes through under stress.