Question

multiple choice question
geologically short periods of rapid evolutionary change and long periods of stasis are the two main processes identified in the hypothesis known as

punctuated equilibrium
sympatric speciation
adaptive radiation
gradualism

Explanation:

Punctuated equilibrium posits periods of rapid evolutionary change (punctuations) interspersed with long periods of stasis. Sympatric speciation is about new species arising in the same geographical area. Adaptive radiation is the diversification of organisms from an ancestral species into various new forms. Gradualism suggests slow - continuous evolutionary change.

Answer:

punctuated equilibrium