无柄

The sessile coral polyps attach themselves firmly to the ocean floor, forming the hard exoskeleton of a coral reef.
珊瑚座生物紧紧地附着在海底，形成珊瑚礁的坚硬外骨骼。
Sessile organisms, like many plants, cannot move from their location without external assistance.
像许多植物一样的固着生物无法在没有外界帮助的情况下移动。
The alga's cells are sessile, allowing it to anchor itself in the sediment.
藻类细胞是固着的，使其能够扎根于沉积物中。
Sessile cells often have specialized structures for capturing nutrients from the surrounding environment.
固着细胞常常有专门结构来从周围环境中获取营养。
The scientist observed the slow, sessile lifestyle of deep sea creatures in their natural habitat.
科学家在自然栖息地中观察了深海生物缓慢而固着的生活方式。
In the fossil record, the transition from aquatic to sessile life forms can be traced back millions of years.
在化石记录中，从水生到固着生物形态的转变可以追溯到数百万年前。
Some bacteria have evolved a sessile stage in their life cycle, forming biofilms on surfaces.
一些细菌在其生命周期中进化出了固着阶段，在表面形成生物膜。
The sessile cacti have adapted to survive in harsh desert environments by conserving water.
固着的仙人掌已经适应了在恶劣沙漠环境中生存，通过节约水分。
Sessile animals, such as starfish and sea anemones, play a vital role in maintaining marine ecosystems.
像海星和海葵这样的固着动物在维持海洋生态系统中起着关键作用。
The scientist conducted experiments on sessile organisms to study their adaptation mechanisms to environmental changes.
科学家对固着生物进行了实验，以研究它们对环境变化的适应机制。