ambulacral system

简明释义

步带系统;

英英释义

例句

1.The starfish uses its ambulacral system 足部系统 to move along the ocean floor.

海星利用其足部系统 ambulacral system 在海底移动。

2.The ambulacral system 足部系统 is responsible for water vascular functions in sea cucumbers.

在海参中，足部系统 ambulacral system 负责水管功能。

3.Researchers study the ambulacral system 足部系统 to understand how echinoderms regenerate limbs.

研究人员研究足部系统 ambulacral system 以了解棘皮动物如何再生肢体。

4.In echinoderms, the ambulacral system 足部系统 plays a crucial role in locomotion.

在棘皮动物中，足部系统 ambulacral system 在运动中起着至关重要的作用。

5.The intricate design of the ambulacral system 足部系统 allows for efficient feeding in sea stars.

复杂的足部系统 ambulacral system 设计使得海星能够高效进食。

作文

The marine world is full of fascinating organisms, each with unique adaptations that allow them to thrive in their environments. One such fascinating feature is the ambulacral system, which is a specialized water vascular system found in echinoderms, such as starfish and sea urchins. The ambulacral system plays a crucial role in locomotion, feeding, and even respiration for these marine animals. Understanding this system provides insight into how echinoderms interact with their environment and maintain their biological functions.The ambulacral system consists of a network of fluid-filled canals that extend throughout the body of an echinoderm. This system is powered by hydraulic pressure, which allows the organism to move its tube feet. Tube feet are small, flexible appendages that can extend and retract, enabling the echinoderm to crawl along surfaces or grip onto rocks and coral. The ability to control these tube feet through the ambulacral system is essential for the animal's mobility and survival in the often turbulent marine environment.Feeding is another critical function of the ambulacral system. In many echinoderms, such as the starfish, the tube feet are used to pry open the shells of prey like mollusks. Once the shell is opened, the starfish can extend its stomach out of its body and into the shell to digest the prey externally. This unique feeding strategy is made possible by the coordination of the tube feet facilitated by the ambulacral system. Without this system, echinoderms would struggle to access food sources, significantly impacting their survival.Furthermore, the ambulacral system also contributes to respiration in echinoderms. Although they do not have lungs, many echinoderms can exchange gases through their tube feet and skin gills. The movement of the water within the ambulacral system helps circulate oxygen and remove carbon dioxide from the body, ensuring that these organisms can breathe effectively underwater. This adaptation highlights the multifunctionality of the ambulacral system beyond just movement and feeding.In summary, the ambulacral system is a remarkable evolutionary adaptation that enables echinoderms to thrive in their aquatic habitats. By facilitating movement, feeding, and respiration, this system illustrates the complexity and efficiency of marine life forms. As we continue to explore and study these organisms, understanding systems like the ambulacral system will deepen our appreciation for the intricate relationships that exist in marine ecosystems. The more we learn about these systems, the better equipped we are to protect and conserve the diverse life forms that inhabit our oceans.

海洋世界充满了迷人的生物，每种生物都有独特的适应能力，使它们能够在环境中生存。其中一个引人入胜的特征是水管系统，这是在棘皮动物（如海星和海胆）中发现的一种特殊水 vascular 系统。水管系统在这些海洋动物的运动、摄食甚至呼吸中起着至关重要的作用。理解这个系统可以深入了解棘皮动物如何与环境互动并维持其生物功能。水管系统由一系列充满液体的管道组成，延伸到棘皮动物的整个身体。这个系统通过液压压力来驱动，使生物能够移动其管足。管足是小而灵活的附肢，可以伸展和收缩，使棘皮动物能够沿着表面爬行或抓住岩石和珊瑚。通过水管系统控制这些管足的能力对动物的移动性和在动荡的海洋环境中的生存至关重要。摄食是水管系统的另一个关键功能。在许多棘皮动物中，如海星，管足用于撬开猎物的外壳，如软体动物。一旦外壳被打开，海星可以将其胃伸出体外，进入外壳以外部消化猎物。这种独特的摄食策略得益于由水管系统促进的管足协调。如果没有这个系统，棘皮动物将难以获取食物来源，从而严重影响它们的生存。此外，水管系统还对棘皮动物的呼吸有贡献。尽管它们没有肺，但许多棘皮动物可以通过其管足和皮肤鳃进行气体交换。水管系统内水的流动有助于循环氧气并去除体内的二氧化碳，确保这些生物能够有效地在水下呼吸。这一适应性突显了水管系统的多功能性，不仅仅是运动和摄食。总之，水管系统是一种了不起的进化适应，使棘皮动物能够在其水生栖息地中茁壮成长。通过促进运动、摄食和呼吸，这个系统展示了海洋生物的复杂性和效率。随着我们继续探索和研究这些生物，理解像水管系统这样的系统将加深我们对海洋生态系统中存在的复杂关系的欣赏。我们对这些系统的了解越多，就越能更好地保护和保存栖息在我们海洋中的各种生命形式。