Australopithecus Africanus Is Now Seen as Representing

question 48

Multiple Choice

Australopithecus africanus is now seen as representing:

• A) a branch of the hominin line that led to extinction
• B) a direct ancestor in the line that led to us
• C) a recent evolutionary throwback
• D) the oldest fossil evidence for hominins in Australia

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Definitions:

MRS

The speed at which a consumer is prepared to exchange one product for another while keeping the same degree of happiness or utility.

Travel

The act of moving from one place to another, which can be for various purposes such as leisure, business, or exploration.

Marginal Cost

Marginal cost is the cost increase for producing one more unit of a good or service, adding to the total cost.

Marginal Benefit

The additional benefit received from the consumption of one more unit of a good or service.