About _________ of the World's Population Resides in the 92

question 49

Multiple Choice

About _________ of the world's population resides in the 92 nations with middle-income economies.

• A) one-half
• B) one-third
• C) one-fourth
• D) one-fifth

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Definitions:

Sympathetic

Pertaining to the part of the autonomic nervous system that typically prepares the body for intense physical activity.

Parasympathetic

The part of the autonomic nervous system responsible for conserving energy as it slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles in the gastrointestinal tract.

Sympathetic

Pertaining to the part of the autonomic nervous system that prepares the body for action and stress responses.

Sympathetic Neurons

Sympathetic neurons are part of the autonomic nervous system and responsible for the body's fight or flight response, regulating involuntary body functions like heart rate and blood flow.