词根词缀：bio-, bi-, -bia, -bial, -bian, -bion, -biont, -bius, -biosis, -bium, -biotic, -biotical

【来源及含义】Greek: life; living, live, alive

【相关描述】Don’t confuse this element with another bi- which means "two".

【相关词根词缀】 Related life, live-word units: anima-; -cole; vita-; viva-.

【同源单词】abiatrophy, abiocoen, abiogenesis, abiogenetic, abiogenetically, abiogenic

词根词缀：cyto-, cyt-, -cyte, cytio-

【来源及含义】Greek: cells, cell, hollow; used primarily in the extended sense of "animal or plant cells" [because cells were originally thought to be hollow]

【相关词根词缀】 A cross reference of word units that are related, directly or indirectly, to "cell, cells, cell nucleus": celli-; cellulo-; endothelio-; gameto-; glio-; kary-, karyo-; neuro-.

【同源单词】anisocytosis, astrocytoma, athrocytosis, autocytoplasty, autophagocytosis, capnocytophaga

词根词缀：taxi-, tax-, taxo-, taxio-, -taxia, -taxis, -taxy, tact-, -tactic, -tactical, -tactics

【来源及含义】Greek: arrangement, order, put in order, orientation; the movements or directed responses of motile organisms to stimuli, as indicated by the combining roots

【同源单词】acroataxia, adelphotaxis, aerotaxis, ahydrotaxis, allelotaxis, amyotaxia