cercus

简明释义

英[ˈsɜːkəs]美[ˈsərkəs;ˈkerəs]

n. [无脊椎]尾毛

n. （Cercus）人名；（法）塞尔屈斯

复 数 c e r c i

英英释义

单词用法

同义词

反义词

例句

1.Cercus: either of a pair of terminal dorsolateral sensory appendages of certain insects such as the female mosquito.

尾须：某些昆虫尾部外侧一对有感觉功能的附尾之一，如雌蚊的尾须。

2.Cercus: either of a pair of terminal dorsolateral sensory appendages of certain insects such as the female mosquito.

尾须：某些昆虫尾部外侧一对有感觉功能的附尾之一，如雌蚊的尾须。

3.The hair-like vibrative receptor of the cockroach cercus is controlled by the centrifugal nerve fibers.

蜚蠊尾须毛形振动感受器受离心神经纤维控制。

4.Some species of mayflies have elongated cercus that aid in their flight.

一些种类的蜉蝣有着延长的cercus，有助于它们的飞行。

5.The cercus can be used to identify different species of insects.

可以通过cercus来识别不同种类的昆虫。

6.The male cricket uses its cercus to attract females during mating season.

雄性蟋蟀在交配季节使用其cercus来吸引雌性。

7.The insect's tail, known as a cercus, helps it maintain balance while flying.

这种昆虫的尾巴，称为cercus，帮助它在飞行时保持平衡。

8.In many insects, the cercus serves as a sensory organ.

在许多昆虫中，cercus 作为一种感官器官。

作文

In the fascinating world of biology, the term cercus refers to a paired appendage found in various arthropods, particularly insects. These structures are often located at the posterior end of the body and play crucial roles in locomotion, reproduction, and sensory perception. Understanding the function and significance of the cercus can provide deeper insights into the evolutionary adaptations of these creatures.For instance, in many species of insects, the cercus serves as a vital tool for navigation and balance. In flying insects, such as dragonflies, these appendages can aid in stabilizing their flight patterns. The sensory hairs present on the cercus can detect changes in air currents, allowing the insect to make quick adjustments while in flight. This ability to sense environmental changes is essential for avoiding predators and navigating through complex habitats.Moreover, the cercus also plays a significant role during mating rituals in some species. Male insects may use their cercus to grasp females during copulation, ensuring successful reproduction. This behavior highlights the evolutionary importance of the cercus not just as a physical structure, but as a key player in the survival and continuation of species.Interestingly, the morphology of the cercus can vary widely among different insect groups. For example, in certain species of grasshoppers, the cercus can be elongated and serve as a tactile organ, while in others, it may be reduced or modified for specific functions. This diversity showcases the adaptability of insects to various ecological niches and their evolutionary history.The study of the cercus extends beyond mere anatomy; it also encompasses the behavioral aspects of insects. Researchers have observed that the presence and condition of the cercus can influence mating success and territorial disputes among male insects. Those with more developed or visually appealing cercus structures often have an advantage in attracting mates or asserting dominance over rivals. This phenomenon illustrates how physical traits can impact social dynamics within insect populations.In conclusion, the term cercus encapsulates a fascinating aspect of insect biology that intertwines structure, function, and behavior. By studying the cercus, scientists can gain valuable insights into the complexities of insect life and the evolutionary pressures that shape their development. As we continue to explore the natural world, the significance of such specialized structures reminds us of the intricate relationships that exist within ecosystems and the remarkable adaptations that allow organisms to thrive in diverse environments.

在生物学的迷人世界中，术语cercus指的是各种节肢动物，特别是昆虫中发现的成对附肢。这些结构通常位于身体的后端，并在运动、繁殖和感知方面发挥着至关重要的作用。理解cercus的功能和意义可以为我们提供更深入的洞察，了解这些生物的进化适应性。例如，在许多昆虫物种中，cercus作为导航和平衡的重要工具。在飞行昆虫中，如蜻蜓，这些附肢可以帮助稳定它们的飞行模式。存在于cercus上的感官毛发能够探测空气流动的变化，使昆虫能够在飞行时迅速调整。这种感知环境变化的能力对于避免捕食者和在复杂栖息地中导航至关重要。此外，cercus在某些物种的交配仪式中也扮演着重要角色。雄性昆虫可能利用它们的cercus在交配时抓住雌性，以确保成功繁殖。这种行为突显了cercus的进化重要性，不仅作为一个物理结构，而且作为物种生存和延续的关键角色。有趣的是，不同昆虫群体中cercus的形态可以有很大差异。例如，在某些草hopper物种中，cercus可能是细长的并用作触觉器官，而在其他物种中，它可能被缩小或修改以适应特定功能。这种多样性展示了昆虫对各种生态位的适应性及其进化历史。对cercus的研究不仅限于解剖学；它还涉及昆虫的行为方面。研究人员观察到，cercus的存在和状态可以影响雄性昆虫的交配成功率和领土争斗。那些拥有更发达或视觉上更具吸引力的cercus结构的个体往往在吸引伴侣或在竞争对手面前占据优势。这一现象说明了物理特征如何影响昆虫种群内的社会动态。总之，术语cercus概括了昆虫生物学的一个迷人方面，交织着结构、功能和行为。通过研究cercus，科学家们可以获得关于昆虫生活复杂性的宝贵洞察，以及塑造其发展的进化压力。随着我们继续探索自然世界，这种专业结构的重要性提醒我们生态系统内存在的复杂关系，以及使生物能够在多样化环境中繁荣的显著适应性。