Demographers Have Noted That the World's Population Distribution Will Undergo

question 89

Essay

Demographers have noted that the world's population distribution will undergo a major shift in the next 30 years. Describe this shift and identify the types of strains it will create in South Africa and in other countries.

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Definitions:

Mucus-Secreting Cells

Specialized cells found in various parts of the body that produce and release mucus, which serves protective and lubricating functions.

Bronchial Tree

A series of tubes that begins where the distal end of the trachea branches.

Pharynx

The muscular tube that connects the mouth and nasal passages with the esophagus and larynx, involved in breathing, swallowing, and speaking.

Inspiratory Reserve Volume

The additional amount of air that can be forcibly inhaled after the completion of a normal inspiration.