Soldiers are chiefly defenders of the nest.

蚁的首要任务是守护巢穴。

They are divided into groups with different jobs, such as workers, soldiers and queens.

们被分为从事不同工作的群体，如工蚁、蚁和蚁后。

For a few species, soldier termites are absent; therefore, nymphs and workers defend the colony.

对于少数白蚁种类，蚁是不存在的；因此，若虫和工蚁保卫群落。

We can say that the social life of termites began more than 20 million years ago as shown by this brave soldier died on the field with honor.

我们能说白蚁的社在两千多万年前就开始了这名光荣捐躯的勇敢蚁就是很好的说明。

Like, how a queen ant's nutrition and pheromones can chemically alter an ant embryo to either produce a soldier or worker ant based on what's needed for the colony.

比如，蚁后的营养和信息素是如何通过化学作用改变蚂蚁胚胎，使其根据蚁群的需要产蚁或工蚁。