What type of star is in the middle of the brightness scale but is cool

answer; polycythemia is the correct answer;

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.

the backbone of the dna and rna compound is sugar phosphate.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;