If Modern Humans Came from Africa, What Explains the Loss

question 95

Multiple Choice

If modern humans came from Africa, what explains the loss of pigmentation seen in different races?

• A)Levels of sunlight vary across the globe, so darker pigmentation wasn't needed in all areas of the world.
• B)The lighter-pigmented humans are found in colder climates, where having less pigmentation is an advantage because it preserves heat.
• C)The diet found in the areas where lighter-pigmented humans are found contains compounds that interfere with the production of pigmentation.
• D)Lighter pigment allows for more efficient production of vitamin D, an advantage in areas with less sunlight.
• E)None of the answer options is correct.

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Definitions:

Perfect Price Discrimination

The practice of charging each customer the maximum they would be willing to pay for a good or service, capturing all consumer surplus.

Willingness To Pay

The maximum amount an individual is prepared to spend on a good or service, reflecting the value they assign to it.

Entry Barriers

Factors that prevent or hinder the ability of a new firm to enter and compete in an industry.

Market Structures

The organizational and other characteristics of a market, including the number and size of firms, extent of competition, and type of product differentiation, impacting the behaviour and profitability of businesses within the market.