What Is the Likely Explanation for the Rapid Increase in Body

question 21

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) reaching for fruits higher in the trees, which increased their height over time
• D) the evolution of bipedalism

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Definitions:

Cyclical Variation

A pattern in time series data that occurs over longer periods and is often related to economic or business cycles.

Seasonal Variation

Fluctuations in data or activity that occur at regular intervals due to seasonal factors.

Forecasting

The process of making predictions about the future based on past and present data and analysis of trends.

Exponential Smoothing

A forecasting technique that applies diminishing weights to past observations, with recent observations given more weight than older observations.