1·Different species of flagellates form a food digestion system to provide nutrients and energy for the host.
不同种类的鞭毛虫共同作用形成了一套降解食物的系统，为宿主提供营养和能量。
2·A large number of flagellates live in the intestine of lower termites, which is vital for the survival of host termites.
大量鞭毛虫栖息在低等白蚁肠道内，是白蚁赖以生存的共生微生物。