Explain how dilation of blood vessels functions as a homeostatic mechanism for a person at a higher altitude

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.

cuz he's blad

explanation:

answer; i believe the answer is (polygenic inheritance;