The fact that the amount of ultraviolet radiation that reaches different parts of the world has led to the evolution of differences in skin color is an example of which of the following?

Question

Quizplus · Accepted Answer

This is an example of a distal cause, as the variation in skin color is the result of a historical, environmental factor (level of ultraviolet radiation in different regions over time) that influenced the evolution of populations over many generations.

The Fact That the Amount of Ultraviolet Radiation That Reaches