Which of the Following Has NOT Been Shown to Follow

question 22

Multiple Choice

Which of the following has NOT been shown to follow or exhibit a geographic cline, at least historically (prior to frequent travel and relocation) ?

• A) ABO blood group distribution
• B) genetically-determined athletic prowess
• C) the sickle cell trait
• D) the ability to digest lactose as an adult
• E) skin color

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Definitions:

Public Infrastructure

Physical and organizational facilities and structures needed for the operation of a society or enterprise, such as roads, bridges, and water supply.

Private Investment

The expenditure by private (non-government) firms on capital goods, such as equipment, buildings, and inventory investments.

Tax System

The legal framework and methods by which a government collects money from individuals and businesses to fund public services and infrastructure.

Economic Growth

A rise in the economy's production of goods and services across a certain timeframe, usually assessed using GDP.