AP BIOLOGY

Detailed explanation-1: -The two generally accepted ideas for rates of evolution are called gradualism and punctuated equilibrium.

Detailed explanation-2: -What patterns describe the rate of evolution? Scientists have developed two patterns to describe the pace of evolution: gradualism and punctuated equilibrium.

Detailed explanation-3: -Under phyletic gradualism, evolution has a similar range of rates at the two times; under punctuated equilibrium, it is much faster at the time of splits. Phyletic gradualism therefore differs from punctuated equilibrium in that it predicts evolutionary change between, as well as during, speciation events.

Detailed explanation-4: -Evolution is a process that results in changes in the genetic content of a population over time. There are two general classes of evolutionary change: microevolution and macroevolution.