bio·gen·ic /-ˈʤɛnɪk/
  生物成因的
  bio·gen·ic /-ˈʤɛnɪk/ 形容詞
  生源的,生物源的
  biogenic
       adj 1: produced by living organisms or biological processes;
              "fermentation is a biogenic process"
       2: essential for maintaining the fundamental life processes;
          "sleep and food and water are among the biogenic needs of
          the organism"