flatworms

简明释义

英[/ˈflætˌwɜrmz/]美[/ˈflætˌwɜrmz/]

[无脊椎] 扁形虫

英英释义

单词用法

同义词

反义词

例句

1.Schistosomiasis (or bilharziasis):Group of chronic disorders caused by parasitic flatworms of the genus Schistosoma (blood flukes).

血吸虫 属 寄生的扁虫引起的慢性疾病。

2.Schistosomiasis (or bilharziasis):Group of chronic disorders caused by parasitic flatworms of the genus Schistosoma (blood flukes).

血吸虫 属 寄生的扁虫引起的慢性疾病。

3.Schistosomiasis, or bilharzia, is a parasitic disease caused by trematode flatworms of the genus Schistosoma.

血吸虫病（又称裂体吸虫病）是由裂体吸虫属血吸虫引起的一种寄生虫病。

4.The flatworms have flattened bodies and look more like chewing gum as they forage for food on the rocks.

当他们在岩石上为食喂的时候，扁形虫已经将身体变平而且看起来更像口胶。

5.Flatworms such as these are just one of the 33, 000 known species in Japanese waters.

像这样的扁虫只是日本水域中33000已知的物种之一。

6.Flatworms such as these are just one of the 33,000 known species in Japanese waters.

像这样的扁虫只是日本水域中33000已知的物种之一。

7.This is the group of flatworms that cause schistosomiasis .

这是一群会导致血吸虫的扁形虫。

8.In biology class, we learned that flatworms 扁形虫 are a type of invertebrate animal.

在生物课上，我们了解到扁形虫 flatworms 是一种无脊椎动物。

9.Some species of flatworms 扁形虫 can regenerate lost body parts.

某些种类的扁形虫 flatworms 能够再生失去的身体部位。

10.Researchers study flatworms 扁形虫 to understand their unique nervous systems.

研究人员研究扁形虫 flatworms 以了解它们独特的神经系统。

11.In freshwater environments, you can often find flatworms 扁形虫 hiding under rocks.

在淡水环境中，你常常可以在岩石下找到扁形虫 flatworms 藏身。

12.Some flatworms 扁形虫 are parasitic and can infect other animals.

一些扁形虫 flatworms 是寄生性的，可以感染其他动物。

作文

Flatworms, known scientifically as *Platyhelminthes*, are a fascinating group of invertebrates that exhibit a wide range of forms and lifestyles. These organisms are characterized by their soft, flattened bodies, which is where the name 'flatworm' comes from. They are found in various environments, including freshwater, marine, and even terrestrial habitats. The diversity among *flatworms* is remarkable, with thousands of species identified, each adapted to its unique ecological niche. One of the most intriguing aspects of *flatworms* is their simple body structure. Unlike more complex animals, *flatworms* lack a circulatory system and respiratory organs. Instead, they rely on diffusion to transport nutrients and oxygen throughout their bodies. This simplicity allows them to thrive in various environments, but it also means they have limitations in terms of size and complexity. *Flatworms* can be categorized into three main classes: Turbellaria, Trematoda, and Cestoda. Turbellarians are mostly free-living and can be found in aquatic environments, often hiding under rocks or in sediment. They are known for their ability to regenerate lost body parts, a feature that has made them a subject of scientific research. On the other hand, Trematoda and Cestoda are primarily parasitic. Trematodes, or flukes, often inhabit the bodies of other animals, while cestodes, or tapeworms, live in the intestines of vertebrates. These parasitic *flatworms* have evolved complex life cycles, often involving multiple hosts, which allows them to spread and survive in various environments. The ecological role of *flatworms* is significant. In freshwater ecosystems, they help in the decomposition process, breaking down organic matter and recycling nutrients. Some species also serve as important indicators of environmental health, as their presence or absence can reflect changes in water quality. In marine environments, *flatworms* contribute to the food web, serving as prey for various fish and invertebrates. Despite their small size, *flatworms* have a substantial impact on human health. Parasitic species like the liver fluke and tapeworms can cause serious diseases in humans and livestock. Understanding the biology and life cycles of these *flatworms* is crucial for developing strategies to control their populations and prevent infections. Researchers continue to study *flatworms* not only for their ecological importance but also for their potential in medical science, particularly in regenerative medicine due to their remarkable healing abilities. In conclusion, *flatworms* are a diverse and essential group of organisms that play vital roles in ecosystems and human health. Their unique characteristics, such as their simple body structure and regenerative capabilities, make them a subject of interest in various scientific fields. As we continue to explore the world of *flatworms*, we uncover more about their biology, ecology, and potential applications in medicine, highlighting the importance of these seemingly simple creatures in our complex world.

扁形虫，科学上称为*Platyhelminthes*，是一类迷人的无脊椎动物，展现出多种形式和生活方式。这些生物的特点是它们柔软、扁平的身体，这也是“扁形虫”这个名字的来源。它们分布在各种环境中，包括淡水、海洋，甚至陆地栖息地。*扁形虫*的多样性令人惊叹，已经识别出数千种，每种都适应其独特的生态位。 *扁形虫*最引人注目的方面之一是它们简单的身体结构。与更复杂的动物不同，*扁形虫*缺乏循环系统和呼吸器官。相反，它们依靠扩散将营养物质和氧气运输到全身。这种简单性使它们能够在各种环境中繁荣，但也意味着它们在大小和复杂性方面有局限性。 *扁形虫*可以分为三大类：涡虫纲、吸虫纲和绦虫纲。涡虫主要是自由生活的，可以在水生环境中找到，通常藏在岩石下或沉积物中。它们以再生失去的身体部位的能力而闻名，而另一方面，吸虫和绦虫主要是寄生的。吸虫，或称为肝吸虫，通常寄生在其他动物体内，而绦虫则生活在脊椎动物的肠道中。这些寄生性的*扁形虫*已经进化出复杂的生命周期，通常涉及多个宿主，这使得它们能够在各种环境中传播和生存。 *扁形虫*的生态角色显著。在淡水生态系统中，它们帮助分解过程，分解有机物并回收营养。一些物种还作为重要的环境健康指示物，因为它们的存在或缺失可以反映水质的变化。在海洋环境中，*扁形虫*对食物网做出了贡献，成为各种鱼类和无脊椎动物的猎物。 尽管体型小，*扁形虫*对人类健康有重大影响。寄生种类如肝吸虫和绦虫可以在人类和家畜中引起严重疾病。了解这些*扁形虫*的生物学和生命周期对于制定控制其种群和预防感染的策略至关重要。研究人员继续研究*扁形虫*，不仅因为它们在生态学上的重要性，还因为它们在医学科学中的潜力，特别是在再生医学领域，因为它们惊人的愈合能力。 总之，*扁形虫*是一类多样且重要的生物，在生态系统和人类健康中发挥着至关重要的作用。它们独特的特征，如简单的身体结构和再生能力，使它们成为各个科学领域的研究对象。随着我们继续探索*扁形虫*的世界，我们发现了更多关于它们的生物学、生态学和在医学中的潜在应用，突显了这些看似简单的生物在我们复杂世界中的重要性。