If the Original Finches That Had Been Blown Over to the Galápagos

question 72

Multiple Choice

If the original finches that had been blown over to the Galápagos from South America had already been genetically different from the parental population of South American finches, even before adapting to the Galápagos, this would have been an example of

• A) genetic drift.
• B) bottleneck effect.
• C) founder effect.
• D) all three of these.
• E) both the first and third of these.

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Definitions:

Pectoralis Major

A large muscle in the upper chest that aids in the rotation and movement of the arm across the body.

Diaphragm

A large, dome-shaped muscle located below the lungs that contracts and relaxes to aid in the breathing process.

Flexor Digitorum Profundus

A muscle located in the forearm that flexes the fingers at the distal interphalangeal joints.

Distal Portion

The part of a limb or structure that is farthest away from the center of the body.