Which concept describes evolution in short, rapid bursts followed by long periods of little change?

Which concept describes evolution in short, rapid bursts followed by long periods of little change?

• A. Gradualism
• B. Habitat
• C. Punctuated Equilibria
• D. Extinct

Answer: (C)

Punctuated equilibria describes evolution that happens in short, rapid bursts during speciation, with long periods of little or no change in between. This pattern lines up with fossil records that show new species appearing relatively suddenly, with few intermediate forms, suggesting rapid shifts in small populations or after environmental changes. Gradualism would mean slow, steady change over long times; habitat is just the environment where organisms live, not the pace of evolution; and extinct means no longer living, which doesn’t address how evolution occurs over time.

Punctuated equilibria describes evolution that happens in short, rapid bursts during speciation, with long periods of little or no change in between. This pattern lines up with fossil records that show new species appearing relatively suddenly, with few intermediate forms, suggesting rapid shifts in small populations or after environmental changes. Gradualism would mean slow, steady change over long times; habitat is just the environment where organisms live, not the pace of evolution; and extinct means no longer living, which doesn’t address how evolution occurs over time.