Which of These Species Was Apparently the First to Craft

question 86

Multiple Choice

Which of these species was apparently the first to craft stone tools?

• A) Australopithecus garhi
• B) H. erectus
• C) H. ergaster
• D) H. habilis
• E) H. sapiens

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Definitions:

Fixed Costs

Costs that do not change with the level of output produced, such as rent, salaries, and loan repayments.

Short Run

A period in which at least one of a firm's inputs is fixed and cannot be changed.

Monopolistically Competitive

A market structure with many firms selling products that are substitutes but differentiated enough that each firm's product has its own demand.

Fixed Costs

Costs that do not vary with the level of output or business activity, such as rent, salaries, and loan payments.