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planula是什么意思

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planula 是什么意思

中文翻译与英英解释

n.
(pl. -ulae ) 【动物;动物学】浮浪幼体。
adj.
-uloid
the flat ciliated free-swimming larva of hydrozoan coelenterates

A planula is the free-swimming, flattened, ciliated, bilaterally symmetric larval form of various cnidarian species. The planula forms from the fertilized egg of a medusa, as the case in scyphozoans and some hydrozoans, or from a polyp, as in the case of anthozoans.

例句与用法

1.In this larval stage of jellyfish life , the planula hooks on to the bottom of a smooth rock or other structure and grows into another stage of jellyfish life , the polyp , which resembles a miniature sea anemone
在海蜇生活的幼体阶段,浮浪幼体吊挂在光滑岩石或其他构筑物的底部并长成海蜇生活的另一个阶段? ?珊瑚虫,它很像一个微缩的海葵。

 
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