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单词 dipleurula
释义

dipleurula /dai'plu:rjulə/

英汉-汉英词典
n. 对称幼虫
词组 | 习惯用语
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  • displeasure n. 不快, 不悦, 生气
  • pleura n. 胸膜;肋膜
  • pleural adj. 胸膜的;肋膜的
  • pleurae n. 胸膜;肋膜(pleura的复数)

网络短语:
dipleurula 对称幼虫; 对称蚴;
dipleurula ancestor 两侧对称祖先
英语百科

Dipleurula

Diagrammatic reconstruction of Dipleurula from Encyclopædia Britannica, 1911. The creature is represented crawling on the sea-floor, but it may equally well have been a floating animal. The ciliated bands are not drawn.

Dipleurula is a hypothetical larva of the Echinoderms. It represents the type of basis of all larva forms of the Eleutherozoa, to which the sea-stars, sea-hedgehog, sea-rollers and sand stars belong. The Dipleurula is a bilaterally symmetrical, ciliated echinoderm larva.

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