The somite forms the myotome, sclerotome and perhaps dermatome.
体节形节、骨节和或许是皮节。
7 The strobila of cestodes consists of a chain of segments (proglottids) budded off from the neck region.
绦虫的节裂区由颈部出芽殖的体节链(节片)组。
In the embryo an undifferentiated mesodermal component of an early trunk or tail segment or metamere, derived from paraxial mesoderm.
在胚胎时,法区别的中胚层组早期躯干、或尾部片段或体节,衍自轴旁的中胚层。
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Like these two animals, its body is made up of a number of rings.
跟龙虾和虾一样,螃蟹身也是很多组。
Its body and it's tail are made of many smaller rings, all joined together.
虾身和尾巴, 是很多连在一起构。
It has a large head, made of what looks like one big ring of hard skin.
虾头很大, 看上去就像甲壳一个大“”。
And metanephridia will have a nephrostome on onside of a segment.
后肾管在一侧具有肾口。
But in the shell of the grown-up crab these rings are so close together that we cannot tell one ring from another.
但是年螃蟹甲壳,彼此挨得太近,没办法分清了。
We see that its body is divided into three parts, and that each part is made of a number of rings joined to one another.
我们看见,它身分三部分,每个部分都是几个连在一起构。
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