flatworm

简明释义

英[ˈflætwɜːm]美[ˈflætwɜːrm]

n. [无脊椎]扁虫；[无脊椎]扁形虫（等于 platyhelminth）

英英释义

单词用法

同义词

反义词

例句

1.Somewhere in the middle may be schistosomiasis, a debilitating disease caused by a parasitic flatworm carried by water snails, which affects 200m people worldwide.

居于这些层次中间的可能是血吸虫病，一种由寄生于钉螺的扁平虫引起的影响患者健康的疾病，它影响着世界上2亿左右的人口。

2.Somewhere in the middle may be schistosomiasis, a debilitating disease caused by a parasitic flatworm carried by water snails, which affects 200m people worldwide.

居于这些层次中间的可能是血吸虫病，一种由寄生于钉螺的扁平虫引起的影响患者健康的疾病，它影响着世界上2亿左右的人口。

3.The tiny flatworm Planaria can be cut into as many as 32 pieces, each of which will grow into a whole new animal complete with eyes, mouth and internal organs.

涡虫类扁虫能被切成三十二片，而每一片都会长成一只全新的动物，眼睛、嘴和内脏俱全。

4.A planarian is a flatworm, one of the lowest life-forms that can be considered an animal.

真涡虫是一种扁虫，一种可以被认为是动物的最低级生命形式。

5.After all, the flatworm planaria does just fine with eyes that are arguably not as good.

从上可知，扁形涡虫的眼睛比理论上要好得多。

6.The flatworm relies upon a population of stem cells to accomplish this remarkable feat;

扁形虫（涡虫是一种扁形虫）要靠大量的干细胞才能完成这种非凡的技艺；

7.Then they amputated a small piece from each flatworm.

然后他们把每个涡虫切成小块。

8.The flatworm 扁虫 is known for its simple body structure.

这种扁虫以其简单的身体结构而闻名。

9.Researchers are studying the regeneration abilities of flatworms 扁虫 to understand healing processes.

研究人员正在研究扁虫的再生能力，以了解愈合过程。

10.Some species of flatworms 扁虫 are parasitic and can affect human health.

一些种类的扁虫是寄生性的，可能影响人类健康。

11.In biology class, we learned that a flatworm 扁虫 has no circulatory system.

在生物课上，我们了解到扁虫没有循环系统。

12.The movement of a flatworm 扁虫 is facilitated by cilia on its body.

一只扁虫的移动是通过其身体上的纤毛来实现的。

作文

Flatworms, scientifically known as Platyhelminthes, are a fascinating group of invertebrates that exhibit remarkable biological diversity and complexity. These organisms are characterized by their flattened bodies, which give them the name 'flatworm'. The body structure of a flatworm (扁形虫) is generally bilaterally symmetrical, meaning that if you were to draw a line down the middle, both halves would mirror each other. This symmetry is not only aesthetically pleasing but also functional, aiding in their movement and interaction with their environment. One of the most intriguing aspects of flatworms (扁形虫) is their habitat. They can be found in a variety of environments ranging from freshwater lakes and streams to marine ecosystems and even damp terrestrial areas. Some species have adapted to extreme conditions, showcasing their resilience and adaptability. For instance, certain flatworms (扁形虫) are capable of surviving in oxygen-poor environments, demonstrating their unique physiological traits. Flatworms are also notable for their reproductive strategies. Many flatworms (扁形虫) are hermaphroditic, possessing both male and female reproductive organs. This allows them to engage in sexual reproduction with any other individual they encounter, enhancing their chances of successful reproduction in sparse populations. Additionally, some species can reproduce asexually through fragmentation, where a piece of the worm can regenerate into a whole new organism. This remarkable ability raises questions about the limits of regeneration in living organisms and has piqued the interest of scientists studying developmental biology. The ecological role of flatworms (扁形虫) is equally significant. They occupy various niches within their ecosystems, often serving as predators, scavengers, or parasites. Some flatworms (扁形虫) are free-living and play a vital role in controlling populations of smaller organisms, while others, such as tapeworms, are parasitic and can inhabit the intestines of larger hosts. These parasitic flatworms (扁形虫) can have profound effects on their hosts, impacting their health and wellbeing, which highlights the intricate balance of ecosystems and the importance of each organism within it. Despite their simplicity, flatworms (扁形虫) have been the subject of extensive research due to their unique biological features. For example, studies on planarians, a type of free-living flatworm (扁形虫), have revealed their extraordinary regenerative capabilities. When cut into pieces, planarians can regenerate lost body parts, including their heads and tails. This ability has implications for understanding tissue regeneration in more complex organisms, including humans. In conclusion, flatworms (扁形虫) are not just simple creatures; they are an essential part of our planet's biodiversity. Their unique characteristics, diverse habitats, and ecological roles underscore the complexity of life forms on Earth. As we continue to explore and study these remarkable organisms, we gain insights not only into their biology but also into the broader themes of evolution, adaptation, and the interconnectedness of life. The world of flatworms (扁形虫) is a reminder of the wonders of nature and the importance of preserving the delicate balance of our ecosystems.

扁形虫，科学上称为扁形动物门，是一类令人着迷的无脊椎动物，展现出显著的生物多样性和复杂性。这些生物的特点是其扁平的身体，这也赋予了它们“扁形虫”的名字。扁形虫（扁形虫）的身体结构通常是双侧对称的，意味着如果你在中间画一条线，两侧将相互镜像。这种对称性不仅在美学上令人愉悦，而且在功能上也有助于它们的移动和与环境的互动。 扁形虫（扁形虫）最引人入胜的方面之一是它们的栖息地。它们可以在各种环境中找到，从淡水湖泊和溪流到海洋生态系统，甚至是潮湿的陆地区域。一些物种已经适应了极端条件，展示了它们的韧性和适应能力。例如，某些扁形虫（扁形虫）能够在缺氧的环境中生存，展示了它们独特的生理特征。 扁形虫（扁形虫）还因其繁殖策略而受到关注。许多扁形虫（扁形虫）是雌雄同体的，拥有雄性和雌性生殖器官。这使得它们能够与任何遇到的个体进行有性繁殖，从而增强在稀少种群中的成功繁殖机会。此外，一些物种可以通过分裂进行无性繁殖，其中一部分蠕虫可以再生为一个完整的新生物。这种非凡的能力引发了关于生物体再生极限的问题，吸引了研究发育生物学的科学家的兴趣。 扁形虫（扁形虫）的生态角色同样重要。它们在生态系统中占据各种生态位，通常充当捕食者、清道夫或寄生虫。一些扁形虫（扁形虫）是自由生活的，在控制较小生物种群方面发挥着至关重要的作用，而其他如绦虫则是寄生的，能够寄居在更大宿主的肠道中。这些寄生的扁形虫（扁形虫）可能对其宿主的健康和福祉产生深远影响，这突显了生态系统的微妙平衡以及每种生物在其中的重要性。 尽管它们相对简单，扁形虫（扁形虫）因其独特的生物特征而成为广泛研究的对象。例如，对平面虫（一种自由生活的扁形虫（扁形虫））的研究揭示了它们非凡的再生能力。当被切成几段时，平面虫可以再生失去的身体部位，包括头部和尾部。这种能力对理解更复杂生物（包括人类）的组织再生具有重要意义。 总之，扁形虫（扁形虫）并不仅仅是简单的生物；它们是我们星球生物多样性的重要组成部分。它们独特的特征、多样的栖息地和生态角色突显了地球上生命形式的复杂性。随着我们继续探索和研究这些非凡的生物，我们不仅获得了对它们生物学的深入了解，还深入了解了进化、适应和生命相互联系的更广泛主题。扁形虫（扁形虫）的世界提醒我们自然的奇迹以及保护生态系统微妙平衡的重要性。