The work of Peter Williamson on freshwater snails in Lake Turkana showed
A)perfectly interconnected and gradual change in species due to the uniform environment over time.
B)an abrupt radiation of species in all directions that can be used to support both gradualism and punctuated equilibrium.
C)thick deposits of unchanged snails and brief periods of rapid change,supporting gradual adaptive radiation.
D)thick deposits of unchanged snails and brief periods of rapid change,supporting the evolutionary model of punctuated equilibrium.

Question

Quizplus · Accepted Answer

The description of thick deposits of unchanged snails followed by brief periods of rapid change is consistent with the model of punctuated equilibrium, which suggests that evolution occurs in short bursts separated by long periods of stability. Therefore, option D is the best choice.

The Work of Peter Williamson on Freshwater Snails in Lake