Biology

The correct answer is: A.Small, incremental changes over long periods.

Explanation:

Gradualism describes the process of evolution occurring through small, continuous, and incremental changes over long periods of time. These small changes accumulate slowly, leading to the gradual development of new species. This is in contrast to models like punctuated equilibrium, which suggests that evolutionary changes can happen rapidly in short bursts, followed by long periods of stasis.

The other options:

B.Rapid changes tha...