ambulacral groove

简明释义

步带沟;

英英释义

例句

1.In echinoderms, the ambulacral groove plays a crucial role in locomotion and feeding.

在棘皮动物中，足沟在运动和进食中起着至关重要的作用。

2.Research on the ambulacral groove of brittle stars reveals insights into their unique locomotion.

对脆星的足沟的研究揭示了它们独特运动方式的见解。

3.The anatomy of a sea cucumber includes a well-defined ambulacral groove for movement.

海参的解剖结构包括一个明确的足沟用于移动。

4.The starfish uses its tube feet located in the ambulacral groove to move along the ocean floor.

海星利用位于足沟的管足在海底移动。

5.When observing a sea urchin, the ambulacral groove can be seen running along its body.

观察海胆时，可以看到足沟沿着它的身体延伸。

作文

The study of marine biology reveals a fascinating world beneath the waves, filled with unique organisms that have adapted to their environments in remarkable ways. One such organism is the echinoderm, a group that includes starfish, sea urchins, and sea cucumbers. These creatures possess a variety of intriguing anatomical features, one of which is the ambulacral groove. The ambulacral groove (中文释义: 腹足沟) is a crucial structure found on the underside of echinoderms, particularly prominent in starfish. It serves as a channel for the tube feet, which are essential for locomotion, feeding, and even respiration. Understanding the function and significance of the ambulacral groove is vital for appreciating how these animals interact with their environment. The groove runs along the radial symmetry of the starfish, allowing the tube feet to extend and retract as needed. Each tube foot operates through a hydraulic system, where water enters the foot, causing it to expand and grip surfaces. This mechanism enables starfish to move across the ocean floor, cling to rocks, and even open the shells of bivalves to access food. The evolutionary adaptations represented by the ambulacral groove showcase the ingenuity of nature. By having this specialized structure, echinoderms can thrive in various marine habitats, from coral reefs to deep-sea environments. Additionally, the presence of the ambulacral groove highlights the importance of structural design in biological systems, demonstrating how form and function are intricately linked. Moreover, studying the ambulacral groove can provide insights into the health of marine ecosystems. Echinoderms are often considered indicators of environmental changes, and their populations can reveal much about the state of their habitats. For instance, a decline in starfish numbers may signal shifts in ocean temperatures or the impact of pollution. As marine biologists work to monitor these changes, understanding the anatomy and function of structures like the ambulacral groove becomes increasingly important. In conclusion, the ambulacral groove (中文释义: 腹足沟) is more than just an anatomical feature; it is a testament to the evolutionary success of echinoderms in adapting to their environments. By studying this unique structure, we gain a deeper appreciation for the complexity of marine life and the delicate balance that sustains our oceans. As we continue to explore and learn about these organisms, the ambulacral groove will undoubtedly remain a focal point of interest for researchers and enthusiasts alike.