For Two Populations to Accumulate Enough Genetic Differences to Cause

question 48

Multiple Choice

For two populations to accumulate enough genetic differences to cause speciation, the factors that promote these differences

• A)must operate in populations that are not physically separated.
• B)must have a greater effect than does the amount of ongoing gene flow.
• C)need to be combined with the forces of genetic drift.
• D)should include polyploidy.

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Definitions:

Sound

Waves that propagate through the air or another carrier and can be detected by the ears of people or animals.

Wave Form

A graphical representation of the shape, amplitude, or frequency of a wave, especially as it relates to sound or electromagnetic waves.

Amplitude

The extent of a vibratory movement measured from the position of equilibrium.

Wavelength

The distance between successive crests of a wave, especially in sound or electromagnetic waves, determining its frequency and energy.