The theory that macroevolution proceeds as the result of gradual microevolutionary change
A) is the only explanation of speciation accepted by biologists today
B) is called the theory of punctuated equilibrium
C) has been refuted
D) has been questioned as the exclusive mode of speciation
E) postulates rapid evolutionary change followed by long periods of stasis

Question

Quizplus · Accepted Answer

The theory that macroevolution proceeds as the result of gradual microevolutionary change has been questioned as the exclusive mode of speciation, meaning that there may be other ways in which new species arise, such as through rapid evolutionary change followed by long periods of stasis (as proposed by the theory of punctuated equilibrium). This theory is not the only explanation of speciation accepted by biologists today, and it has not been refuted, although it is a subject of ongoing debate and research in evolutionary biology.

The Theory That Macroevolution Proceeds as the Result of Gradual