doliolids are tunicates that drift in oceanic waters.
尾虫是被囊动物，漂泊在海洋中。
the doliolid colony exhibits remarkable colonial organization.
尾虫群体展现出显著的群体组织特征。
researchers study doliolid development to understand chordate evolution.
研究人员研究尾虫的发育以了解脊索动物的进化。
doliolids have a unique barrel-shaped body structure.
尾虫具有独特的桶形身体结构。
the doliolid life cycle includes both sexual and asexual phases.
尾虫的生命周期包括有性繁殖和无性繁殖阶段。
these marine organisms play an important role in ocean ecosystems.
这些海洋生物在海洋生态系统中发挥重要作用。
doliolid larvae undergo dramatic metamorphosis during development.
尾虫幼体在发育过程中经历剧烈的变态。
the doliolid filter-feeding mechanism is highly efficient.
尾虫的滤食机制非常高效。
scientists observe doliolid behavior in laboratory settings.
科学家在实验室环境中观察尾虫的行为。
doliolid populations fluctuate with seasonal changes in temperature.
尾虫的数量随季节温度变化而波动。
the doliolid's transparent body allows researchers to study internal organs.
尾虫的透明身体使研究人员能够研究内部器官。
doliolids belong to the phylum chordata despite their simple appearance.
尾虫尽管外表简单，却属于脊索动物门。
doliolids are tunicates that drift in oceanic waters.
尾虫是被囊动物，漂泊在海洋中。
the doliolid colony exhibits remarkable colonial organization.
尾虫群体展现出显著的群体组织特征。
researchers study doliolid development to understand chordate evolution.
研究人员研究尾虫的发育以了解脊索动物的进化。
doliolids have a unique barrel-shaped body structure.
尾虫具有独特的桶形身体结构。
the doliolid life cycle includes both sexual and asexual phases.
尾虫的生命周期包括有性繁殖和无性繁殖阶段。
these marine organisms play an important role in ocean ecosystems.
这些海洋生物在海洋生态系统中发挥重要作用。
doliolid larvae undergo dramatic metamorphosis during development.
尾虫幼体在发育过程中经历剧烈的变态。
the doliolid filter-feeding mechanism is highly efficient.
尾虫的滤食机制非常高效。
scientists observe doliolid behavior in laboratory settings.
科学家在实验室环境中观察尾虫的行为。
doliolid populations fluctuate with seasonal changes in temperature.
尾虫的数量随季节温度变化而波动。
the doliolid's transparent body allows researchers to study internal organs.
尾虫的透明身体使研究人员能够研究内部器官。
doliolids belong to the phylum chordata despite their simple appearance.
尾虫尽管外表简单，却属于脊索动物门。
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