An organism changes significantly from the parent generation to the offspring generation and then stabilizes. What type of evolution is this?

-Graduated speciation
-Allopatric speciation
-Punctuated equilibrium
-Allopatric equilibrium

Punctuated equilibrium

Explanation:

This is an example of punctuated equilibrium, in which the development of new species occurs very quickly and then stabilizes in subsequent generations.

answer; i believe the answer is hydraulic action;

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.