EVERYDAY SCIENCE

Detailed explanation-1: -In contrast, phyletic gradualism (below), is a more gradual, continuous model of evolution – with accumulation of small incremental changes represented by slanted bars that split at branch-points, where two separate modes of life are feasible but of which, each prospers best with divergent specializations.

Detailed explanation-2: -Gradualism in biology and geology refers most broadly to a theory that changes of organic life and of the Earth itself occur through gradual increments, and often that transitions between different states are more or less continual and slow rather than periodic and rapid.

Detailed explanation-3: -This model of evolution is called gradualism. The fossil record better supports the model of punctuated equilibrium. In this model, long periods of little change are interrupted by bursts of rapid change.

Detailed explanation-4: –jə-ˌli-: the policy of approaching a desired end by gradual stages. : the evolution of new species by gradual accumulation of small genetic changes over long periods of time. also : a theory or model of evolution emphasizing this compare punctuated equilibrium.