Generations of Scientists Have Debated Whether the Neandertals Were Ancestral

question 46

Multiple Choice

Generations of scientists have debated whether the Neandertals were ancestral to modern Europeans.The current prevailing view,which denies the ancestry,proposes that

• A)Neandertals died out because they retained too many australopithecine characteristics that were poorly adapted to northern latitudes.
• B)Neandertals migrated eastward through Siberia and into the Americas until they died out.
• C)H.erectus killed off the Neandertals even prior to the emergence of anatomically moderns humans.
• D)H.erectus split into separate groups,one ancestral to the Neandertals,the other ancestral to anatomically modern humans,who first reached Europe around 100,000 B.P.-long before Neandertals.
• E)modern humans evolved in Africa and eventually colonized Europe,displacing the Neandertals there.

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Imperfect Competition

All market structures except pure competition; includes monopoly, monopolistic competition, and oligopoly.

Labor Demand Elasticity

The sensitivity of employers' demand for labor to changes in the price or cost of labor, reflecting how much the quantity of labor demanded responds to changes in wages.

Total Costs

The cumulative costs associated with the complete process of producing and selling a product or service.

Labor Cost

The total expenditure incurred by employers for the wages, benefits, and taxes of their workforce.