East Asians Who Have Migrated Recently from India and Pakistan

question 5

Multiple Choice

East Asians who have migrated recently from India and Pakistan to northern areas of the United Kingdom have a higher incidence of rickets and osteoporosis than the general British population. This illustrates that

• A) natural selection continues today.
• B) genetic adaptation of environmental stressors can occur within one generation.
• C) cultural adaptation provides effective shortcuts to the genetically disadvantaged in a foreign environment.
• D) because of global warming, the lack of sunlight that people are exposed to in these northern regions is made up for by the intensity of the sunlight.
• E) natural selection's role in determining skin color is a thing of the past, relevant only prior to the sixteenth century when massive populational migrations altered the geographic distribution of dark-skinned people.

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Definitions:

Overexpansion

The rapid and often uncontrollable growth of a business, territory, or economy, which can lead to inefficiency, unmanageability, and financial problems.

American Railroads

A network of rail transport that significantly contributed to the economic development and westward expansion of the United States throughout the 19th and 20th centuries.

Railroad Industry

The railroad industry encompasses companies that operate railroads, which are large networks of track on which trains travel to transport goods and passengers.

Regulation

The government's imposition of rules within a market to promote fairness, stability, and efficiency, often to protect the public interest.