parapodium

简明释义

英[/ˌpærəˈpoʊdiəm/]美[/ˌpærəˈpoʊdiəm/]

伪足

疣足

侧足

复 数 p a r a p o d i a

英英释义

单词用法

同义词

反义词

例句

1.The adhesion platelets of PLGA coating were more, and some platelets deformed and the parapodium stretched out;

聚丙交酯乙交酯涂层表面黏附血小板较多，个别血小板变形伸出伪足；

2.The adhesion platelets of PLGA coating were more, and some platelets deformed and the parapodium stretched out.

聚丙交酯乙交酯涂层表面黏附血小板较多，个别血小板变形伸出伪足。

3.The adhesion platelets of PLGA coating were more, and some platelets deformed and the parapodium stretched out;

聚丙交酯乙交酯涂层表面黏附血小板较多，个别血小板变形伸出伪足；

4.The marine biologist explained how the parapodium 副足 helps the worm swim effectively in the ocean.

海洋生物学家解释了parapodium 副足如何帮助蠕虫在海洋中有效游泳。

5.In some species of annelids, the parapodium 副足 serves as a respiratory structure.

在某些环节动物的物种中，parapodium 副足充当呼吸结构。

6.The parapodium 副足 is a key adaptation that allows certain marine organisms to thrive in turbulent waters.

对于某些海洋生物来说，parapodium 副足是一种关键适应，使它们能够在波涛汹涌的水域中茁壮成长。

7.The presence of parapodia 副足 can indicate the ecological role of the organism in its habitat.

存在parapodia 副足可以指示该生物在其栖息地中的生态角色。

8.Researchers studied the parapodia 副足 of various polychaete worms to understand their locomotion.

研究人员研究了各种多毛虫的parapodia 副足以理解它们的运动方式。

作文

In the vast and intricate world of marine biology, one term that often arises is parapodium. The word parapodium refers to a type of lateral extension found in certain annelids, particularly polychaete worms. These structures serve various functions, including locomotion, respiration, and aiding in the organism's ability to interact with its environment. Understanding the role of parapodium in these creatures can provide deeper insights into their biology and ecological significance.Polychaetes are a diverse group of segmented worms that inhabit various marine environments, from shallow coastal waters to the deep sea. One of the defining characteristics of many polychaetes is their segmented body structure, which is often adorned with numerous bristles or setae. The parapodium is an appendage that emerges from each segment of the worm's body, typically appearing as fleshy lobes or flaps. These extensions not only enhance the worm's surface area but also play a crucial role in movement.The locomotion of polychaetes is fascinating, as they can move in different ways depending on the type of parapodium they possess. For instance, some species utilize their parapodia for crawling along the seabed, while others may employ them for swimming through the water column. The muscle structure within the parapodium allows for contraction and expansion, enabling the worm to propel itself forward or anchor itself in place. This versatility highlights the evolutionary adaptations of polychaetes to their respective habitats.In addition to locomotion, parapodia also serve an essential function in respiration. Many polychaetes live in oxygen-poor environments, making efficient gas exchange vital for their survival. The increased surface area provided by the parapodia facilitates the diffusion of oxygen and carbon dioxide, allowing these organisms to thrive in various conditions. This adaptation is particularly important for species that inhabit sediment or burrow into the ocean floor, where oxygen levels may be limited.Furthermore, parapodia can play a role in feeding strategies. Some polychaetes use their parapodia to capture prey or to filter food particles from the water. The structures can be equipped with sensory organs that help the worm detect chemical signals in the water, guiding it toward food sources. This interplay between morphology and behavior showcases the complexity of life forms that rely on parapodium for survival.Ecologically, the presence of parapodia in polychaetes contributes to the overall health of marine ecosystems. As detritivores or predators, these worms participate in nutrient cycling and play a role in the food web. Their activities can influence sediment composition and promote the growth of other marine organisms, including plants and smaller animals. Thus, understanding the function of parapodia not only enriches our knowledge of polychaetes but also underscores their importance in maintaining balanced ecosystems.In conclusion, the term parapodium encapsulates a remarkable adaptation seen in polychaetes that enhances their mobility, respiration, and feeding capabilities. By examining the various roles of parapodia, we gain a greater appreciation for the diversity of life in our oceans and the intricate relationships that exist within marine environments. As we continue to explore and study these fascinating organisms, the significance of parapodium will undoubtedly remain a key focus in understanding marine biology and ecology.

在广阔而复杂的海洋生物学世界中，一个经常出现的术语是parapodium。这个词parapodium指的是某些环节动物，特别是多毛虫中发现的一种侧面延伸。这些结构具有多种功能，包括运动、呼吸，以及帮助生物体与其环境进行互动。理解parapodium在这些生物中的作用可以为我们提供更深入的生物学和生态学意义。多毛虫是一类多样化的分段蠕虫，栖息在从浅海到深海的各种海洋环境中。许多多毛虫的一个定义特征是它们的分段身体结构，通常装饰着众多的刚毛或刺。parapodium是从蠕虫身体的每个分段中伸出的附肢，通常呈现为肉质的叶片或边缘。这些延伸不仅增加了蠕虫的表面积，还在运动中发挥着至关重要的作用。多毛虫的运动方式令人着迷，因为它们可以根据所拥有的parapodium类型以不同的方式移动。例如，一些物种利用它们的parapodia在海底爬行，而其他物种可能利用它们在水柱中游泳。parapodium内部的肌肉结构允许收缩和扩张，使蠕虫能够向前推进或固定在原地。这种多功能性突显了多毛虫对其栖息地的进化适应。除了运动外，parapodia还在呼吸中发挥着重要作用。许多多毛虫生活在缺氧环境中，因此高效的气体交换对它们的生存至关重要。parapodia提供的增加表面积促进了氧气和二氧化碳的扩散，使这些生物能够在各种条件下繁衍生息。这种适应对于栖息在沉积物中或埋入海床的物种尤为重要，因为那里氧气水平可能有限。此外，parapodia在捕食策略中也可能发挥作用。一些多毛虫利用它们的parapodia来捕获猎物或从水中过滤食物颗粒。这些结构可能配备有感官器官，帮助蠕虫检测水中的化学信号，引导它们找到食物来源。这种形态与行为之间的相互作用展示了依赖于parapodium生存的生命形式的复杂性。从生态学角度来看，多毛虫中parapodia的存在有助于维持海洋生态系统的整体健康。作为腐食动物或捕食者，这些蠕虫参与营养循环，并在食物链中发挥作用。它们的活动可以影响沉积物组成，并促进其他海洋生物的生长，包括植物和小动物。因此，理解parapodia的功能不仅丰富了我们对多毛虫的知识，也强调了它们在维持平衡生态系统中的重要性。总之，术语parapodium概括了多毛虫中一种显著的适应性，增强了它们的运动、呼吸和取食能力。通过考察parapodia的各种角色，我们对海洋中生命的多样性以及海洋环境中存在的复杂关系有了更深的理解。随着我们继续探索和研究这些迷人的生物，parapodium的重要性无疑将继续成为理解海洋生物学和生态学的关键焦点。