The lipid bilayer molecules do what for the cell? a. cells recognize each other b. allow food molecules into the cell c. prevent the passage of certain molecules into the cell d. organize amino acids for protein synthesis

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.