pupal

简明释义

英[ˈpjuːpəl]美[ˈpjuːpəl]

adj. 蛹的

英英释义

单词用法

同义词

反义词

例句

1.Undergoing a metamorphosis that lacks a pupal stage. Used of certain insects.

半变态的经历缺少蛹的阶段的蜕变的。用于某些昆虫。

2.A protective case of silk or similar fibrous material spun by the larvae of moths and other insects that serves as a covering for their pupal stage.

纤维或类似纤维材料的保护壳，由蛾或其他昆虫的幼虫做成，作为其蛹阶段的覆盖物。

3.During metamorphosis, the larval midgut epithelium degenerated and the pupal epithelial cells due to differentiation of larval regenerative cells replaced the larval epithelial cells.

在变态发育期间，中肠上皮经历了广泛的重组，由再生细胞重新形成的蛹上皮替代了幼虫上皮。

4.The average and range of pupal weight of beet armyworm Spodoptera exigua (Hubner) fed on artificial diet mainly consisted of soybean, wheat and yeast were 97.

以大豆、小麦、酵母粉为主要原料配成的人工饲料饲养甜菜夜蛾，平均单头蛹重为97。

5.He said it was called pupal caves.

他说这称为蛹洞。

6.Moreover, in any of above treatments, there was no significant difference in pupal weight between those obtained on the conventional cotton leaves and those on the transgenic cotton leaves.

上述所有处理中，甜菜夜蛾在常规棉上化蛹的蛹重与转基因棉上化蛹的蛹重无显著差异。

7.With an increase in female parasitiod density, there was a corresponding increase in pupal parasitization rate and the average number of progeny per parasitized pupae.

随着雌蜂密度增加，寄主蛹的寄生率和平均每头寄生蛹中的子蜂数相应提高，但平均每雌产的子蜂数则逐渐减少。

8.The caterpillar enters a stage known as pupal 蛹期 before transforming into a butterfly.

毛虫进入一个称为蛹期的阶段，然后变成蝴蝶。

9.During the pupal 蛹期, the insect undergoes significant changes in its body structure.

在蛹期，昆虫的身体结构发生显著变化。

10.Scientists study the pupal 蛹期 to understand how metamorphosis occurs in different species.

科学家研究蛹期以了解不同物种中变态发生的过程。

11.After several weeks in the pupal 蛹期, the adult insect emerges ready to reproduce.

经过几周的蛹期后，成虫准备好繁殖。

12.The pupal 蛹期 is crucial for the development of many insects, including beetles and moths.

对于许多昆虫，包括甲虫和蛾子来说，蛹期是至关重要的。

作文

In the fascinating world of entomology, the study of insects, one of the most intriguing stages of an insect's life cycle is the pupal (蛹期的) stage. This phase occurs after the larval stage and before the adult stage, serving as a critical transitional period where the insect undergoes significant transformation. The pupal (蛹期的) stage can vary greatly among different species, both in duration and in the physical changes that occur. For example, butterflies and moths enter a well-known pupal (蛹期的) stage called the chrysalis, where they are encased in a protective shell while their bodies undergo remarkable reorganization. In contrast, beetles may enter a pupal (蛹期的) stage that is less conspicuous, often found buried in the soil or hidden within decaying wood.During the pupal (蛹期的) stage, the insect is typically immobile and does not feed. This period of dormancy allows the insect to concentrate on its metamorphosis. Inside the pupal (蛹期的) casing, the larval tissues break down and are reorganized into adult structures. This process is known as histolysis, and it is crucial for developing wings, legs, and other features that will be essential for survival in the adult stage.The pupal (蛹期的) stage can last anywhere from a few days to several months, depending on environmental conditions such as temperature and humidity. Some insects even enter a state of diapause during this time, which is a form of dormancy triggered by unfavorable conditions. This adaptation helps ensure that the insect emerges at the right time when food sources are abundant and conditions are suitable for survival.Understanding the pupal (蛹期的) stage is essential for researchers and conservationists alike. Many insects play critical roles in ecosystems, such as pollinators or decomposers, and their life cycles must be protected to maintain ecological balance. Furthermore, studying the pupal (蛹期的) stage can provide insights into the evolutionary adaptations of insects and their responses to changing environments.In agriculture, the pupal (蛹期的) stage is also significant, especially when considering pest control. Many agricultural pests spend part of their life cycle in the pupal (蛹期的) stage, making it an opportune time for intervention. By targeting the pupal (蛹期的) stage with specific pesticides or biological controls, farmers can effectively reduce pest populations without harming beneficial insects.In conclusion, the pupal (蛹期的) stage is a remarkable and complex phase in the life cycle of insects. It represents a time of profound change and adaptation, crucial for the survival of many species. By studying this stage, we gain valuable knowledge about the biology of insects, their ecological roles, and their importance in agriculture. As we continue to explore the wonders of the insect world, the pupal (蛹期的) stage will undoubtedly remain a key focus of research and discovery.

在迷人的昆虫学世界中，昆虫生命周期中最引人入胜的阶段之一是pupal（蛹期的）阶段。这个阶段发生在幼虫阶段之后，成虫阶段之前，是昆虫经历重大转变的关键过渡期。不同物种的pupal（蛹期的）阶段在持续时间和身体变化方面可能差异很大。例如，蝴蝶和蛾子进入一个著名的pupal（蛹期的）阶段，称为蛹，在这个阶段它们被包裹在保护壳中，而它们的身体则经历显著的重组。相比之下，甲虫可能进入一个不太显眼的pupal（蛹期的）阶段，通常埋藏在土壤中或隐藏在腐烂的木头中。在pupal（蛹期的）阶段，昆虫通常是静止的，不进食。这一休眠期使昆虫能够专注于其变态发育。在pupal（蛹期的）外壳内，幼虫组织会分解并重新组织成成虫结构。这个过程被称为组织溶解，对于翅膀、腿以及成虫阶段生存所需的其他特征的发展至关重要。pupal（蛹期的）阶段的持续时间可以从几天到几个月不等，这取决于温度和湿度等环境条件。一些昆虫甚至在此期间进入一种叫做滞育的状态，这是一种由不利条件引发的休眠形式。这种适应性有助于确保昆虫在食物来源丰富和生存条件合适时出现。理解pupal（蛹期的）阶段对研究人员和保护主义者来说都至关重要。许多昆虫在生态系统中扮演着关键角色，例如授粉者或分解者，它们的生命周期必须得到保护以维持生态平衡。此外，研究pupal（蛹期的）阶段可以提供关于昆虫进化适应及其对环境变化反应的见解。在农业中，pupal（蛹期的）阶段也非常重要，尤其是在考虑害虫控制时。许多农业害虫在生命周期的一部分时间里处于pupal（蛹期的）阶段，因此这是进行干预的良好时机。通过针对pupal（蛹期的）阶段使用特定的杀虫剂或生物控制，农民可以有效减少害虫种群，同时不伤害有益昆虫。总之，pupal（蛹期的）阶段是昆虫生命周期中一个非凡而复杂的阶段。它代表着深刻变化和适应的时期，对许多物种的生存至关重要。通过研究这一阶段，我们获得了关于昆虫生物学、生态角色及其在农业中重要性的宝贵知识。随着我们继续探索昆虫世界的奇妙之处，pupal（蛹期的）阶段无疑将继续成为研究和发现的关键焦点。