CREATE TABLE table_30979 ("Season no." FLOAT, "Series no." FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" FLOAT, "U.S. viewers  ( millions ) " TEXT)

What is the number in season of the episode titled 'Cadaver'?
SELECT "Season no." FROM table_30979 WHERE "Title" = 'Cadaver'
SELECT "Season no." FROM "table_30979" WHERE "Title" = 'Cadaver'