clasper

简明释义

英[ˈklɑːspə(r)]美[ˈklæspər]

n. 抱握器；卷须

英英释义

单词用法

同义词

反义词

例句

1.The flat sheet has a clasper at its one edge to hold end edge of display card and there is a fan located in the first plane.

平板其中一边缘具有一卡勾，夹持于显示卡的边缘。以及一风扇，位于第一平面。

2.The flat sheet has a clasper at its one edge to hold end edge of display card and there is a fan located in the first plane.

平板其中一边缘具有一卡勾，夹持于显示卡的边缘。以及一风扇，位于第一平面。

3.In some species, the clasper is highly developed for reproduction.

在某些物种中，爪子在繁殖中高度发达。

4.The male shark uses its clasper to hold onto the female during mating.

雄性鲨鱼用它的爪子在交配时抓住雌性。

5.During the breeding season, the clasper becomes more prominent.

在繁殖季节，爪子变得更加明显。

6.The anatomy of the male fish includes a pair of claspers for mating.

雄性鱼的解剖结构包括一对用于交配的爪子。

7.The scientist observed how the clasper helps in the fertilization process.

科学家观察了爪子如何帮助受精过程。

作文

In the fascinating world of biology, every organism has unique adaptations that help it survive in its environment. One such adaptation can be found in certain species of fish and reptiles, which possess specialized structures known as claspers. These are elongated, often slender appendages that play a crucial role in reproduction. Understanding the function of claspers not only sheds light on the reproductive strategies of these animals but also highlights the incredible diversity of life forms on our planet.To begin with, claspers are primarily associated with male sharks and rays. During mating, males use their claspers to grasp the female and facilitate the transfer of sperm. This process is vital for successful reproduction, as it ensures that the sperm reaches the female’s eggs. The presence of claspers in these species exemplifies the evolutionary adaptations that have occurred over millions of years to enhance reproductive success.Interestingly, claspers are not exclusive to sharks and rays; they can also be found in some species of reptiles, particularly among certain types of lizards. In these reptiles, claspers serve a similar purpose during mating. The male uses his claspers to secure the female, allowing for effective copulation. This adaptation is essential for species that may not have the same level of mobility in water as their aquatic counterparts.The study of claspers offers valuable insights into the evolution of different species and their reproductive behaviors. Scientists have observed that the size and shape of claspers can vary significantly among species, indicating a complex interplay between environmental factors and reproductive strategies. For example, larger claspers may be advantageous in species where competition among males is fierce, while smaller claspers might be sufficient in less competitive environments.Moreover, the examination of claspers can also contribute to our understanding of sexual selection. In many species, females may choose mates based on the characteristics of their claspers, leading to a fascinating dynamic between male competition and female choice. This aspect of reproductive biology underscores the intricate relationships that exist within ecosystems and the importance of each species in maintaining ecological balance.In conclusion, the study of claspers reveals much about the reproductive strategies of various species, particularly in the realm of aquatic life. These specialized structures not only facilitate mating but also provide a window into the evolutionary processes that shape biodiversity. As we continue to explore the complexities of life on Earth, understanding the role of adaptations like claspers will be crucial in appreciating the intricacies of nature and the delicate balance that sustains it. Through research and observation, we can gain deeper insights into how these remarkable adaptations have evolved and how they contribute to the survival of species in their respective habitats.

在生物学的迷人世界中，每种生物都有独特的适应性，帮助它在环境中生存。其中一种适应性可以在某些鱼类和爬行动物中找到，它们具有被称为claspers的特殊结构。这些是细长的、通常是纤细的附肢，在繁殖中发挥着至关重要的作用。理解claspers的功能不仅阐明了这些动物的繁殖策略，还突显了我们星球上生命形式的惊人多样性。首先，claspers主要与公鲨鱼和鳐鱼相关。在交配过程中，雄性利用其claspers抓住雌性，并促进精子的转移。这个过程对于成功繁殖至关重要，因为它确保精子到达雌性的卵子。这些物种中claspers的存在体现了数百万年来为了增强繁殖成功而发生的进化适应。有趣的是，claspers并不仅限于鲨鱼和鳐鱼；它们也可以在某些蜥蜴的爬行动物物种中找到。在这些爬行动物中，claspers在交配期间起着类似的作用。雄性使用他的claspers来固定雌性，从而实现有效的交配。这种适应性对于那些在水中可能没有与水生同类相同移动能力的物种至关重要。对claspers的研究提供了对不同物种及其繁殖行为的宝贵见解。科学家们观察到，claspers的大小和形状在物种之间可能有显著差异，这表明环境因素与繁殖策略之间的复杂相互作用。例如，在雄性竞争激烈的物种中，较大的claspers可能是有利的，而在竞争较少的环境中，较小的claspers可能就足够了。此外，检查claspers还可以帮助我们理解性选择。在许多物种中，雌性可能根据雄性的claspers特征选择配偶，从而导致雄性竞争与雌性选择之间的迷人动态。这一生殖生物学的方面强调了生态系统内存在的复杂关系，以及每个物种在维持生态平衡中的重要性。总之，claspers的研究揭示了各种物种的繁殖策略，特别是在水生生命领域。这些特殊结构不仅促进交配，而且为我们提供了一个窗口，以了解塑造生物多样性的进化过程。随着我们继续探索地球生命的复杂性，理解像claspers这样的适应性将对欣赏自然的复杂性和维持其脆弱平衡至关重要。通过研究和观察，我们可以深入了解这些显著适应性是如何进化的，以及它们如何为物种在各自栖息地中的生存做出贡献。