The sudden appearance of a large number of species in a relatively short geological time is known as:

Practice MCQ for SSC, UPSC, RRB Exams

A. Gradualism A.
B. Punctuated equilibrium B.
C. Adaptive radiation C.
D. Divergent evolution D.

Correct Answer: B সঠিক উত্তর: B

Explanation ব্যাখ্যা

Punctuated equilibrium describes a model of evolution where species remain relatively stable for long periods, then undergo rapid bursts of change, leading to the sudden appearance of new species in the fossil record.

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