V2EX zooid

Zooid

Definition / 定义

(生物)群体动物体(个体体):指由许多“模块化个体”组成的群体生物(如珊瑚、管水母、海鞘群体)中,一个具有特定功能的单个个体单位。常见于刺胞动物、苔藓虫、被囊动物等的群体结构中。(在不同类群里,zooid 的独立性与功能分化程度不一。)

Pronunciation / 发音

/zo.d/

Examples / 例句

A coral colony is made up of many tiny zooids.
一个珊瑚群体由许多微小的群体动物体组成。

In some colonial organisms, each zooid specializes in feeding, defense, or reproduction, so the colony functions like a single integrated animal.
在一些群体生物中,每个群体动物体会专门负责摄食、防御或繁殖,因此整个群体像一个高度整合的“单一动物”那样运作。

Etymology / 词源

源自希腊语 zōion(“动物、生物”)加上后缀 -oid(“……形的、类似……的”)。字面含义可理解为“像动物一样的(个体)/动物样单位”,用于强调群体生物中“个体单位”的概念。

Related Words / 相关词

Literary Works / 文学作品

该词更常见于生物学与自然史写作(偏科学文献/教材)中,例如:

  • Invertebrate Zoology(无脊椎动物学相关教材/著作常讨论群体动物与 zooid)
  • The Biology of Hydra and of Some Other Coelenterates(水螅等刺胞动物研究著作中常涉及相关概念)
  • Marine Biology(海洋生物学教材中谈及珊瑚、管水母等群体生物时常出现)
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