Australopithecus Garhi Has Been Proposed as an Ancestor for Homo

question 37

Multiple Choice

Australopithecus garhi has been proposed as an ancestor for Homo mainly because:

• A) it had a bigger brain than other australopithecines.
• B) it had smaller molar teeth than other australopithecines.
• C) it had longer legs relative to arm length than other australopithecines.
• D) it was bipedal.

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Definitions:

Average Total Cost Curve

A graphical representation showing how the total cost per unit of output changes with the level of output.

Short Run

A period in economics during which the quantities of at least one input or resource are fixed, limiting the ability of the economy or firm to adjust to changes in demand or supply.

Long Run

A period in which all factors of production and costs are variable, allowing for all possible adjustments in production and operations.

Break-Even

The point at which total cost and total revenue are equal, meaning the business or project is not making a loss nor profit.