What Is the Likely Explanation for the Rapid Increase in Body

question 48

Multiple Choice

What is the likely explanation for the rapid increase in body and brain size among Homo erectus?

• A)an influx of genes for increased height
• B)greater access to protein and improved nutrition
• C)a tendency to reach for fruits higher in the trees,which increased their height over time
• D)the evolution of bipedalism

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Definitions:

Perfectly Inelastic

A situation in demand where the quantity demanded does not change in response to a change in price.

Insulin

A hormone produced by the pancreas that regulates blood glucose levels by facilitating the uptake of glucose into tissues, used medically to treat diabetes.

Quantity Demanded

The total amount of a good or service that consumers are willing to buy at a given price level in a given period.

Perfectly Inelastic

Describing a situation where the quantity demanded or supplied of a good does not change in response to a price change.