Like most worms, helminths synthesize chitin for their pharynx.
如同大多数蠕虫，蛔虫为自身咽部合成甲壳素。
For the same reason, filter feeders, like clams and worms, burrow underground in most regions.
同样的道理，类似蛤和虫这样的滤食动物在大部分区域都埋在地下。
Most worms in nature like to congregate in clumps, but the laboratory version of C. elegans has developed an unusual liking for being on its own.
自然界大多数蛔虫喜欢簇拥成团，但实验室里的秀丽线虫却养成了独来独往的喜好。
Most worms in nature like to congregate in clumps, but the laboratory version of C. elegans has developed an unusual liking for being on its own.
自然界大多数蛔虫喜欢簇拥成团，但实验室里的秀丽线虫却养成了独来独往的喜好。
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