What 2 characteristics are used to place organisms into different kingdoms

One of the characteristics used to place organisms into kingdoms is their ability to make food. Other characteristics used are the cell structure that is whether prokaryote or eukaryote, absence or presence of cell wall, presence or absence of other organelles, cellularity may also be used such as whether unicellular or multicellular, and lastly the mode of nutrition such as whether heterotrophs or autotrophs, e.t.c

i thinking chemical change

my teacher would say no s