ambulacral radius

简明释义

步带辐板;

英英释义

例句

1.The study of echinoderms often focuses on the structure of the ambulacral radius, which is essential for understanding their locomotion.

对棘皮动物的研究通常侧重于足沟半径的结构，这对于理解它们的运动至关重要。

2.Researchers measured the ambulacral radius in different species to compare their adaptations.

研究人员测量了不同物种的足沟半径以比较它们的适应性。

3.In sea stars, the ambulacral radius plays a vital role in the arrangement of tube feet.

在海星中，足沟半径在管足的排列中起着重要作用。

4.When examining the anatomy of a sea urchin, the ambulacral radius is a key feature to observe.

在检查海胆的解剖结构时，足沟半径是一个关键特征。

5.The ambulacral radius helps scientists understand the feeding mechanisms of various echinoderms.

通过研究足沟半径，科学家可以理解各种棘皮动物的进食机制。

作文

The study of marine biology reveals fascinating insights into the anatomy of various sea creatures, particularly echinoderms, which include starfish, sea urchins, and sea cucumbers. One of the remarkable features of these organisms is the structure known as the ambulacral radius, or in Chinese, 足沟半径. This term refers to the radial canal that runs along the arms of echinoderms, playing a crucial role in their locomotion and feeding mechanisms. The ambulacral radius is integral to the water vascular system, a unique feature of echinoderms that allows them to move and feed through hydraulic pressure. This system consists of a network of fluid-filled canals that operate the tube feet, which are extensions of the body used for movement and grasping objects. The ambulacral radius specifically refers to the part of this system that is situated within the arm of the organism, providing structural support and facilitating the function of the tube feet.In starfish, for example, the ambulacral radius runs along each arm and houses the tube feet. These tube feet can extend and retract, allowing the starfish to crawl along the ocean floor, capture prey, and even open the shells of bivalves. The coordination of the ambulacral radius with the tube feet enables these creatures to adapt to their environment effectively, showcasing their evolutionary success.Moreover, the ambulacral radius is not only vital for movement but also plays a significant role in feeding. Echinoderms have a unique feeding strategy; many species, such as the crown-of-thorns starfish, use their tube feet to pry open the shells of mollusks. The ambulacral radius aids in this process by providing the necessary leverage and strength to manipulate their prey. Once the shell is opened, the starfish can extend its stomach out of its body and into the shell to digest the soft tissues inside—a fascinating display of adaptation.Understanding the ambulacral radius is essential for marine biologists studying the ecology of ocean environments. By examining how these structures function, researchers can gain insights into the behaviors and interactions of echinoderms within their ecosystems. For instance, changes in the health of the ambulacral radius may indicate broader environmental issues, such as pollution or climate change, affecting marine life.In conclusion, the ambulacral radius is a critical component of echinoderm anatomy that facilitates movement and feeding. Its role within the water vascular system highlights the complexity of marine organisms and their adaptations to life in the ocean. As we continue to explore the depths of our oceans, understanding structures like the ambulacral radius will be key to preserving marine biodiversity and ensuring the health of our planet's ecosystems.

海洋生物学的研究揭示了各种海洋生物的解剖学的迷人见解，特别是棘皮动物，包括海星、海胆和海参。这些生物的一个显著特征是被称为足沟半径的结构，中文为足沟半径。这个术语指的是沿着棘皮动物的臂部延伸的放射性管道，对于它们的运动和取食机制起着至关重要的作用。足沟半径是水管系统的核心部分，这是棘皮动物的一个独特特征，使它们能够通过液压压力进行移动和取食。该系统由一系列充满液体的管道组成，操作着管足，这些是用于移动和抓握物体的身体延伸。足沟半径特别指的是位于生物臂部内的这一部分，提供结构支持并促进管足的功能。例如，在海星中，足沟半径沿着每个臂部延伸，并容纳管足。这些管足可以伸展和收缩，使海星能够在海底爬行，捕捉猎物，甚至打开双壳类的外壳。足沟半径与管足的协调使这些生物能够有效地适应其环境，展示了它们的进化成功。此外，足沟半径不仅对运动至关重要，还在取食中发挥了重要作用。棘皮动物具有独特的取食策略；许多物种，如冠刺海星，利用它们的管足撬开软体动物的外壳。足沟半径通过提供必要的杠杆和力量来操纵猎物，帮助这一过程。一旦外壳被打开，海星可以将其胃从体内伸出并进入外壳中消化内部的软组织——这是一种令人着迷的适应展示。理解足沟半径对于研究海洋生态的海洋生物学家至关重要。通过检查这些结构的功能，研究人员可以深入了解棘皮动物在其生态系统中的行为和相互作用。例如，足沟半径健康状况的变化可能表明更广泛的环境问题，如污染或气候变化，影响海洋生命。总之，足沟半径是棘皮动物解剖学的一个关键组成部分，促进运动和取食。它在水管系统中的作用突显了海洋生物的复杂性及其对海洋生活的适应。随着我们继续探索海洋深处，理解像足沟半径这样的结构将是保护海洋生物多样性和确保我们星球生态系统健康的关键。