The difference between phyletic gradualism and punctuated equilibrium is that
A) phyletic gradualism is specific to eukaryotes and punctuated equilibrium is specific to prokaryotes.
B) punctuated equilibrium states that speciation can occur in a relatively short period of time, while phyletic gradualism states that speciation occurs gradually over vast periods of time.
C) phyletic gradualism states that speciation can occur over a relatively short time period, while punctuated equilibrium states that speciation requires vast periods of time.
D) the fossil record only supports phyletic gradualism.
E) the fossil record only supports punctuated equilibrium.

Question

Quizplus · Accepted Answer

Phyletic gradualism and punctuated equilibrium are both theories about the pace of evolution. Phyletic gradualism posits that evolution occurs slowly and steadily over long periods of time, while punctuated equilibrium suggests that evolutionary change happens quickly in short bursts, followed by long periods of stasis. Therefore, the correct answer is B, as it accurately reflects the difference between the two theories.

The Difference Between Phyletic Gradualism and Punctuated Equilibrium Is That