Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: Abubuwan da ke rayuwa sun bambanta bisa ga yawan kwayoyin da aka gina a cikin sel. Autotrophs kamar tsire-tsire na iya gina kwayoyin halitta masu rikitarwa a cikin sel kamar polysaccharides da sunadarai daga kwayoyin sauki kamar carbon dioxide da ruwa. Heterotrophs, a gefe guda, suna buƙatar tushen abubuwa masu rikitarwa, kamar su monosaccharides da amino acid, don samar da waɗannan kwayoyin masu rikitarwa. Za'a iya rarraba halittu ta hanyar tushen makamashi na ƙarshe: photoautotrophs da photoheterotrophs suna samun makamashi daga haske, yayin da chemoautotrophs da chemoheterotrophs suna samun makamashi daga halayen inorganic oxidation.  Tambaya: Menene za a iya rarraba ta hanyar tushen makamashi?
Kwayoyin halitta