The ability of the sweet nectar in the flower to attract the hummingbird would be considered which of the following ? a a variation b an adaptation c a vestigial organ d a homologous structure

Variation, A
Hope that this helps you.. =)

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

Rna polymeras should attache to the promoter.