Luca Cavalli-Sforza Hypothesizes That Skin Color Change Came Late Because

question 31

Multiple Choice

Luca Cavalli-Sforza hypothesizes that skin color change came late because:

• A) people used rudimentary umbrellas.
• B) earlier populations had ready access to vitamin D from the foods they ate.
• C) the Sun was not as powerful as it is today.
• D) people were still migrating from a cold cloudy environment to a sunny environment.

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Definitions:

Profit-maximizing

A strategic objective of businesses where they aim to achieve the highest possible profit from their operations.

Pure Monopolist

A single seller in a market who has complete control over the supply of a product or service, with no close substitutes available, leading to significant market power.

Economic Inefficiency

A situation where resources are not optimally allocated, leading to waste or a loss of potential value in an economy.

Profit-maximizing Output

The level of production at which a firm achieves the highest possible profit, determined where marginal revenue equals marginal cost.