cerci

简明释义

英[ˈsɜːsiː]美[ˈsɜːrkəsaɪ]

n. 尾须（cercus 的复数）

英英释义

单词用法

同义词

反义词

例句

1.The morphological features of Biattlla germanica cerci were observed under scanning electron microscope.

本实验用扫描电镜观察了德国小蠊尾须的细微结构。

2.The morphological features of Biattlla germanica cerci were observed under scanning electron microscope.

本实验用扫描电镜观察了德国小蠊尾须的细微结构。

3.The insects use their cerci to sense their environment.

昆虫利用它们的尾肢来感知环境。

4.Scientists study the structure of cerci to understand insect evolution.

科学家研究尾肢的结构以理解昆虫进化。

5.Predators can be deterred by the defensive movements of the cerci.

掠食者可能会因尾肢的防御性动作而退却。

6.The cerci of this insect are particularly long and curved.

这种昆虫的尾肢特别长且弯曲。

7.In some species, the cerci are used for mating displays.

在某些物种中，尾肢用于交配展示。

作文

In the fascinating world of entomology, the study of insects reveals countless adaptations that have evolved over millions of years. One such remarkable adaptation is found in certain species of insects, particularly in the order Orthoptera and some other groups. These insects possess a pair of appendages known as cerci, which are located at the rear end of their bodies. The term cerci refers to these paired sensory organs that can vary significantly in size, shape, and function among different insect species. Understanding the role of cerci provides insight into how insects interact with their environment and survive in various habitats.The primary function of cerci is to serve as sensory organs. They are equipped with numerous sensory receptors that help insects detect changes in their surroundings. For instance, many insects use their cerci to sense vibrations in the air or ground, allowing them to detect potential predators or mates. This heightened sense of awareness is crucial for survival, especially in environments where dangers lurk around every corner.In addition to their role in sensing vibrations, cerci can also aid in communication among insects. Some species utilize these appendages to convey signals to one another, whether it be during mating rituals or territorial displays. The movements and positions of cerci can communicate a wealth of information, enhancing social interactions within insect populations.Moreover, the structure of cerci can vary greatly depending on the species. In some insects, such as certain types of cockroaches, cerci are long and whip-like, providing a wide range of motion and sensitivity. In contrast, other insects may have shorter, more robust cerci that serve different functions, such as aiding in defense against predators. This diversity in form and function illustrates the incredible adaptability of insects and their evolutionary success.Interestingly, not all insects possess cerci. Their presence is often associated with specific environmental adaptations. For example, insects that live in dark, subterranean environments may rely less on visual cues and more on their cerci for navigation and survival. On the other hand, insects that inhabit open, well-lit areas might have reduced cerci since they can rely more on sight.In conclusion, the study of cerci offers a glimpse into the complex lives of insects and their remarkable adaptations. These appendages play a vital role in sensory perception, communication, and survival strategies. As researchers continue to explore the diverse world of insects, the significance of cerci will undoubtedly remain a topic of interest, shedding light on the intricate relationships between organisms and their environments. By understanding these unique features, we gain a deeper appreciation for the evolutionary processes that shape life on Earth.

在迷人的昆虫学世界中，昆虫的研究揭示了数百万年来演化出的无数适应性。其中一个引人注目的适应性出现在某些昆虫物种中，特别是在直翅目和其他一些群体中。这些昆虫拥有一对称为cerci的附肢，位于其身体的后端。术语cerci指的是这些成对的感官器官，它们在不同的昆虫物种中大小、形状和功能差异显著。理解cerci的作用可以深入了解昆虫如何与环境互动并在各种栖息地中生存。cerci的主要功能是作为感官器官。它们配备了众多感官受体，帮助昆虫检测周围环境的变化。例如，许多昆虫利用它们的cerci来感知空气或地面的振动，从而能够检测潜在的捕食者或伴侣。这种高度的警觉感对于生存至关重要，特别是在危险潜伏的环境中。除了在感知振动中的作用外，cerci还可以帮助昆虫之间的交流。一些物种利用这些附肢在交配仪式或领土展示中传达信号。cerci的运动和位置可以传达大量信息，增强昆虫种群内的社会互动。此外，cerci的结构因物种而异。在某些昆虫中，例如某些类型的蟑螂，cerci是长且像鞭子一样的，提供了广泛的运动范围和敏感度。相比之下，其他昆虫可能具有较短、更强壮的cerci，用于不同的功能，例如帮助防御捕食者。这种形式和功能的多样性展示了昆虫的惊人适应能力及其进化成功。有趣的是，并非所有昆虫都具备cerci。它们的存在通常与特定的环境适应相关。例如，生活在黑暗地下环境中的昆虫可能依赖于它们的cerci进行导航和生存，而减少视觉线索。另一方面，栖息在开阔明亮地区的昆虫可能会减少cerci的数量，因为它们可以更多地依赖视力。总之，cerci的研究为我们提供了一瞥昆虫复杂生活和它们卓越适应性的机会。这些附肢在感知、交流和生存策略中发挥着至关重要的作用。随着研究人员继续探索多样化的昆虫世界，cerci的重要性无疑将继续成为一个有趣的话题，揭示生物体与其环境之间错综复杂的关系。通过理解这些独特的特征，我们可以更深刻地欣赏塑造地球生命的进化过程。