Question

what do gradualism and punctuated equilibrium have in common?
they are both explanations of the rate of evolutionary change.
they are both explanations that were put forth by darwin.
they both discredit the theory of evolution.
they both utilize radioactive dating over relative dating.

Explanation:

Gradualism proposes that evolution occurs slowly and steadily over long periods. Punctuated equilibrium suggests that evolution has long periods of stasis (little change) interrupted by short bursts of rapid change. Both concepts address how quickly or slowly evolutionary change happens, so they are both about the rate of evolutionary change. Darwin mainly focused on natural selection as a mechanism of evolution and did not propose punctuated equilibrium. Neither discredits the theory of evolution. And they are not about dating methods (radioactive dating vs relative dating).

Answer:

They are both explanations of the rate of evolutionary change.