Directional Selection in the Modern Horse Is Demonstrated by

question 37

Multiple Choice

Directional selection in the modern horse is demonstrated by

• A) the gradual decrease in size over time.
• B) the rapid decrease in size over time.
• C) the gradual increase in size over time.
• D) the rapid increase in size over time.
• E) the extinction of other horse species. Over time, horses gradually increased in overall size as an adaptation to their environment changing from forest to grassland. A directional change such as this indicates directional selection.

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Definitions:

In the Block

Refers to components or processes taking place within the main structure of an engine.

In the Oil Pan

Refers to the storage area at the bottom of an engine where oil collects and is recirculated, crucial for engine lubrication and cooling.

Engine Displacement

The total volume of air/fuel mixture an engine can draw in during one complete engine cycle, measured in liters or cubic inches, indicating the engine's size and power potential.

Cubic Millimeters

A unit of volume measurement in the metric system, equal to one millimeter by one millimeter by one millimeter, used to quantify very small volumes.