CREATE TABLE table_28968 ("Species" TEXT, "Common Name" TEXT, "Protein Name" TEXT, "Accession Number" TEXT, "NT Length" TEXT, "NT Identity" TEXT, "AA Length" TEXT, "AA Identity" TEXT, "E-Value" TEXT)

What is the nt identity when the species is drosophilia melanogaster?
SELECT "NT Identity" FROM table_28968 WHERE "Species" = 'Drosophilia melanogaster'
SELECT "NT Identity" FROM "table_28968" WHERE "Species" = 'Drosophilia melanogaster'