Aspecies of lizards migrates to a group of islands in the ocean. over time, they diversified and evolved into several different species. each species has a unique jaw shape that allows it to eat its own specific diet. this is an example of

Mutation is the correct answer hope this helps :)

Speciation ; this is when the same organisms are separated by a natural barrier and over time, due to mutation and natural selection they turn into different species.

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