The Type of Selection That Favored Progressively Larger Brain Size

question 4

Multiple Choice

The type of selection that favored progressively larger brain size in human evolution is:

• A) natural selection.
• B) directional selection.
• C) stabilizing selection.
• D) disruptive selection.

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Definitions:

Deposition

The geological process where sediments, soil, and rocks are added to a landform or landmass.

Low-gradient Stream

A stream that has a gentle slope, resulting in slower water movement and often a meandering course.

Point Bar

a depositional feature made of alluvium that accumulates on the inside bend of streams and rivers below the slip-off slope.

Cutbank

The steep bank typically found on the outside bend of a river or stream, formed by the erosion process of flowing water.