Studies of Darwin's Finches Have Found That at Certain Points

question 1

Multiple Choice

Studies of Darwin's finches have found that at certain points in time all finches on the island have either wide beaks or sharp narrow beaks. The type of evolution that leads to this phenotype distribution is:

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

---

Definitions:

Method of Residues

A technique in scientific and logical analysis where elements accounted for by existing explanations are removed to isolate the effect of a single factor.

Radioactivity

The spontaneous emission of particles or radiation from the nucleus of an unstable atom, transforming it into a different element.

Moonlight

To work at an additional job, often secretly and at night.

Method

A planned way of doing something involving systematic and orderly steps or techniques to achieve a desired result or solve a problem.