Question

Which of the following processes of speciation forms populations with long periods of stability through rapid speciation?

• A. Gradualism
• B. Punctuated equilibrium
• C. Adaption radiation
• D. Convergent evolution
• E. Divergent evolution

Answer 1

Answer: (B)

Punctuated equilibrium

Adaptive radiation, convergent and divergent evolution are long processes as divergence or convergence of structures and functions in different organisms followed by their natural selection is a long-term process. Punctuated equilibrium explains the presence of quick changes in population leading to speciation within the longer period of stability while gradualism is the slow accumulation of gradual changes leading to speciation.

Therefore, the correct answer is option B.